57666844 has 12 divisors (see below), whose sum is σ = 100981944. Its totient is φ = 28814864.

The previous prime is 57666841. The next prime is 57666857. The reversal of 57666844 is 44866675.

It is a junction number, because it is equal to n+sod(n) for n = 57666794 and 57666803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57666841) 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 3 ways as a sum of consecutive naturals, for example, 4239 + ... + 11545.

It is an arithmetic number, because the mean of its divisors is an integer number (8415162).

Almost surely, 2^57666844 is an apocalyptic number.

It is an amenable number.

57666844 is a deficient number, since it is larger than the sum of its proper divisors (43315100).

57666844 is a wasteful number, since it uses less digits than its factorization.

57666844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9284 (or 9282 counting only the distinct ones).

The product of its digits is 967680, while the sum is 46.

The square root of 57666844 is about 7593.8688426915. The cubic root of 57666844 is about 386.3450876934.

The spelling of 57666844 in words is "fifty-seven million, six hundred sixty-six thousand, eight hundred forty-four".