57447970 has 32 divisors (see below), whose sum is σ = 107711856. Its totient is φ = 22041600.

The previous prime is 57447961. The next prime is 57447983. The reversal of 57447970 is 7974475.

It can be written as a sum of positive squares in 8 ways, for example, as 762129 + 56685841 = 873^2 + 7529^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23862 + ... + 26158.

Almost surely, 2^57447970 is an apocalyptic number.

57447970 is a deficient number, since it is larger than the sum of its proper divisors (50263886).

57447970 is a wasteful number, since it uses less digits than its factorization.

57447970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406.

The product of its (nonzero) digits is 246960, while the sum is 43.

The square root of 57447970 is about 7579.4439110003. The cubic root of 57447970 is about 385.8556781911.

The spelling of 57447970 in words is "fifty-seven million, four hundred forty-seven thousand, nine hundred seventy".