70621632 has 168 divisors, whose sum is σ = 221894400. Its totient is φ = 22208256.

The previous prime is 70621619. The next prime is 70621657. The reversal of 70621632 is 23612607.

It is a happy number.

70621632 is a `hidden beast` number, since 7 + 0 + 6 + 21 + 632 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 70621596 and 70621605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 295369 + ... + 295607.

It is an arithmetic number, because the mean of its divisors is an integer number (1320800).

Almost surely, 2^70621632 is an apocalyptic number.

70621632 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70621632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110947200).

70621632 is an abundant number, since it is smaller than the sum of its proper divisors (151272768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70621632 is a wasteful number, since it uses less digits than its factorization.

70621632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 70621632 is about 8403.6677706820. The cubic root of 70621632 is about 413.3448996648.

It can be divided in two parts, 70621 and 632, that added together give a triangular number (71253 = T₃₇₇).

The spelling of 70621632 in words is "seventy million, six hundred twenty-one thousand, six hundred thirty-two".