57716409 has 8 divisors (see below), whose sum is σ = 79608960. Its totient is φ = 37150736.

The previous prime is 57716401. The next prime is 57716419. The reversal of 57716409 is 90461775.

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 57716409 - 2³ = 57716401 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57716401) 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, 331617 + ... + 331790.

It is an arithmetic number, because the mean of its divisors is an integer number (9951120).

Almost surely, 2^57716409 is an apocalyptic number.

It is an amenable number.

57716409 is a deficient number, since it is larger than the sum of its proper divisors (21892551).

57716409 is a wasteful number, since it uses less digits than its factorization.

57716409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663439.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 57716409 is about 7597.1316297666. The cubic root of 57716409 is about 386.4557446398.

The spelling of 57716409 in words is "fifty-seven million, seven hundred sixteen thousand, four hundred nine".