70747488 has 144 divisors (see below), whose sum is σ = 242161920. Its totient is φ = 19139328.

The previous prime is 70747483. The next prime is 70747499. The reversal of 70747488 is 88474707.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70747483) by changing a digit.

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, 37381 + ... + 39227.

It is an arithmetic number, because the mean of its divisors is an integer number (1681680).

Almost surely, 2^70747488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70747488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121080960).

70747488 is an abundant number, since it is smaller than the sum of its proper divisors (171414432).

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

70747488 is a wasteful number, since it uses less digits than its factorization.

70747488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889 (or 1878 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 45.

The square root of 70747488 is about 8411.1525964044. The cubic root of 70747488 is about 413.5902969164.

The spelling of 70747488 in words is "seventy million, seven hundred forty-seven thousand, four hundred eighty-eight".