70972656 has 40 divisors (see below), whose sum is σ = 184761984. Its totient is φ = 23474880.

The previous prime is 70972651. The next prime is 70972709. The reversal of 70972656 is 65627907.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70972651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645 + ... + 11931.

Almost surely, 2^70972656 is an apocalyptic number.

It is an amenable number.

70972656 is an abundant number, since it is smaller than the sum of its proper divisors (113789328).

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

70972656 is a wasteful number, since it uses less digits than its factorization.

70972656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11429 (or 11423 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 70972656 is about 8424.5270490396. The cubic root of 70972656 is about 414.0286101258.

The spelling of 70972656 in words is "seventy million, nine hundred seventy-two thousand, six hundred fifty-six".