677251663 has 8 divisors (see below), whose sum is σ = 758788560. Its totient is φ = 599042880.

The previous prime is 677251651. The next prime is 677251709. The reversal of 677251663 is 366152776.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677251663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677251613) 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, 831598 + ... + 832411.

It is an arithmetic number, because the mean of its divisors is an integer number (94848570).

Almost surely, 2^677251663 is an apocalyptic number.

677251663 is a deficient number, since it is larger than the sum of its proper divisors (81536897).

677251663 is a wasteful number, since it uses less digits than its factorization.

677251663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664057.

The product of its digits is 317520, while the sum is 43.

The square root of 677251663 is about 26024.0593105687. The cubic root of 677251663 is about 878.1796318691.

The spelling of 677251663 in words is "six hundred seventy-seven million, two hundred fifty-one thousand, six hundred sixty-three".