70664832 has 256 divisors, whose sum is σ = 250675200. Its totient is φ = 19160064.

The previous prime is 70664773. The next prime is 70664837. The reversal of 70664832 is 23846607.

70664832 is a `hidden beast` number, since 7 + 0 + 6 + 648 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (70664837) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 556353 + ... + 556479.

It is an arithmetic number, because the mean of its divisors is an integer number (979200).

Almost surely, 2^70664832 is an apocalyptic number.

70664832 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 70664832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125337600).

70664832 is an abundant number, since it is smaller than the sum of its proper divisors (180010368).

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

70664832 is a wasteful number, since it uses less digits than its factorization.

70664832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 70664832 is about 8406.2376840058. The cubic root of 70664832 is about 413.4291649689.

The spelling of 70664832 in words is "seventy million, six hundred sixty-four thousand, eight hundred thirty-two".