70992920 has 16 divisors (see below), whose sum is σ = 159734160. Its totient is φ = 28397152.

The previous prime is 70992913. The next prime is 70992923. The reversal of 70992920 is 2929907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70992923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 887372 + ... + 887451.

It is an arithmetic number, because the mean of its divisors is an integer number (9983385).

Almost surely, 2^70992920 is an apocalyptic number.

It is an amenable number.

70992920 is an abundant number, since it is smaller than the sum of its proper divisors (88741240).

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

70992920 is a wasteful number, since it uses less digits than its factorization.

70992920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774834 (or 1774830 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 70992920 is about 8425.7296419954. The cubic root of 70992920 is about 414.0680106398.

The spelling of 70992920 in words is "seventy million, nine hundred ninety-two thousand, nine hundred twenty".