686977466 has 8 divisors (see below), whose sum is σ = 1177675680. Its totient is φ = 294418908.

The previous prime is 686977397. The next prime is 686977579. The reversal of 686977466 is 664779686.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24534896 + ... + 24534923.

It is an arithmetic number, because the mean of its divisors is an integer number (147209460).

Almost surely, 2^686977466 is an apocalyptic number.

686977466 is a deficient number, since it is larger than the sum of its proper divisors (490698214).

686977466 is a wasteful number, since it uses less digits than its factorization.

686977466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49069828.

The product of its digits is 18289152, while the sum is 59.

The square root of 686977466 is about 26210.2549777754. The cubic root of 686977466 is about 882.3634238805.

The spelling of 686977466 in words is "six hundred eighty-six million, nine hundred seventy-seven thousand, four hundred sixty-six".