70639752 has 16 divisors (see below), whose sum is σ = 176599440. Its totient is φ = 23546576.

The previous prime is 70639729. The next prime is 70639781. The reversal of 70639752 is 25793607.

It is a self number, because there is not a number n which added to its sum of digits gives 70639752.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1471638 + ... + 1471685.

It is an arithmetic number, because the mean of its divisors is an integer number (11037465).

Almost surely, 2^70639752 is an apocalyptic number.

It is an amenable number.

70639752 is an abundant number, since it is smaller than the sum of its proper divisors (105959688).

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

70639752 is a wasteful number, since it uses less digits than its factorization.

70639752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943332 (or 2943328 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 70639752 is about 8404.7458022239. The cubic root of 70639752 is about 413.3802484613.

The spelling of 70639752 in words is "seventy million, six hundred thirty-nine thousand, seven hundred fifty-two".