57656670 has 16 divisors (see below), whose sum is σ = 138376080. Its totient is φ = 15375104.

The previous prime is 57656663. The next prime is 57656671. The reversal of 57656670 is 7665675.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57656671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 960915 + ... + 960974.

It is an arithmetic number, because the mean of its divisors is an integer number (8648505).

Almost surely, 2^57656670 is an apocalyptic number.

57656670 is an abundant number, since it is smaller than the sum of its proper divisors (80719410).

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

57656670 is a wasteful number, since it uses less digits than its factorization.

57656670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921899.

The product of its (nonzero) digits is 264600, while the sum is 42.

The square root of 57656670 is about 7593.1989306221. The cubic root of 57656670 is about 386.3223657626.

The spelling of 57656670 in words is "fifty-seven million, six hundred fifty-six thousand, six hundred seventy".