57686669 has 8 divisors (see below), whose sum is σ = 58565760. Its totient is φ = 56811456.

The previous prime is 57686659. The next prime is 57686687. The reversal of 57686669 is 96668675.

57686669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 57686669 - 2²⁰ = 56638093 is a prime.

It is a super-2 number, since 2×57686669² = 6655503560631122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57686669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57686659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43829 + ... + 45125.

It is an arithmetic number, because the mean of its divisors is an integer number (7320720).

Almost surely, 2^57686669 is an apocalyptic number.

It is an amenable number.

57686669 is a deficient number, since it is larger than the sum of its proper divisors (879091).

57686669 is a wasteful number, since it uses less digits than its factorization.

57686669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939.

The product of its digits is 3265920, while the sum is 53.

The square root of 57686669 is about 7595.1740598883. The cubic root of 57686669 is about 386.3893558452.

It can be divided in two parts, 5768666 and 9, that added together give a palindrome (5768675).

The spelling of 57686669 in words is "fifty-seven million, six hundred eighty-six thousand, six hundred sixty-nine".