70457872 has 10 divisors (see below), whose sum is σ = 136512158. Its totient is φ = 35228928.

The previous prime is 70457869. The next prime is 70457923. The reversal of 70457872 is 27875407.

It can be written as a sum of positive squares in only one way, i.e., 42198016 + 28259856 = 6496^2 + 5316^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2201793 + ... + 2201824.

Almost surely, 2^70457872 is an apocalyptic number.

It is an amenable number.

70457872 is a deficient number, since it is larger than the sum of its proper divisors (66054286).

70457872 is a wasteful number, since it uses less digits than its factorization.

70457872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4403625 (or 4403619 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 40.

The square root of 70457872 is about 8393.9187510959. The cubic root of 70457872 is about 413.0251593504.

The spelling of 70457872 in words is "seventy million, four hundred fifty-seven thousand, eight hundred seventy-two".