70065872 has 20 divisors (see below), whose sum is σ = 135945540. Its totient is φ = 34983168.

The previous prime is 70065851. The next prime is 70065899. The reversal of 70065872 is 27856007.

It can be written as a sum of positive squares in 2 ways, for example, as 39639616 + 30426256 = 6296^2 + 5516^2 .

It is a congruent number.

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, 10238 + ... + 15650.

It is an arithmetic number, because the mean of its divisors is an integer number (6797277).

Almost surely, 2^70065872 is an apocalyptic number.

It is an amenable number.

70065872 is a deficient number, since it is larger than the sum of its proper divisors (65879668).

70065872 is a wasteful number, since it uses less digits than its factorization.

70065872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6230 (or 6224 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 70065872 is about 8370.5359446095. The cubic root of 70065872 is about 412.2577643589.

The spelling of 70065872 in words is "seventy million, sixty-five thousand, eight hundred seventy-two".