57664406 has 8 divisors (see below), whose sum is σ = 86694960. Its totient is φ = 28766088.

The previous prime is 57664403. The next prime is 57664469. The reversal of 57664406 is 60446675.

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

It is a self number, because there is not a number n which added to its sum of digits gives 57664406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57664403) 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, 31961 + ... + 33716.

It is an arithmetic number, because the mean of its divisors is an integer number (10836870).

Almost surely, 2^57664406 is an apocalyptic number.

57664406 is a deficient number, since it is larger than the sum of its proper divisors (29030554).

57664406 is a wasteful number, since it uses less digits than its factorization.

57664406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66118.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 57664406 is about 7593.7083167580. The cubic root of 57664406 is about 386.3396430708.

The spelling of 57664406 in words is "fifty-seven million, six hundred sixty-four thousand, four hundred six".