57676021 has 8 divisors (see below), whose sum is σ = 62347320. Its totient is φ = 53038272.

The previous prime is 57676013. The next prime is 57676057. The reversal of 57676021 is 12067675.

It can be written as a sum of positive squares in 4 ways, for example, as 7761796 + 49914225 = 2786^2 + 7065^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57676021 - 2³ = 57676013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57676061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4750 + ... + 11743.

It is an arithmetic number, because the mean of its divisors is an integer number (7793415).

Almost surely, 2^57676021 is an apocalyptic number.

It is an amenable number.

57676021 is a deficient number, since it is larger than the sum of its proper divisors (4671299).

57676021 is a wasteful number, since it uses less digits than its factorization.

57676021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16775.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 57676021 is about 7594.4730561113. The cubic root of 57676021 is about 386.3655806986.

The spelling of 57676021 in words is "fifty-seven million, six hundred seventy-six thousand, twenty-one".