70320872 has 16 divisors (see below), whose sum is σ = 131940900. Its totient is φ = 35136640.

The previous prime is 70320847. The next prime is 70320889. The reversal of 70320872 is 27802307.

It can be written as a sum of positive squares in 2 ways, for example, as 57547396 + 12773476 = 7586^2 + 3574^2 .

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, 20222 + ... + 23442.

Almost surely, 2^70320872 is an apocalyptic number.

It is an amenable number.

70320872 is a deficient number, since it is larger than the sum of its proper divisors (61620028).

70320872 is a wasteful number, since it uses less digits than its factorization.

70320872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5956 (or 5952 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 70320872 is about 8385.7541103946. The cubic root of 70320872 is about 412.7572869342.

The spelling of 70320872 in words is "seventy million, three hundred twenty thousand, eight hundred seventy-two".