677983665 has 8 divisors (see below), whose sum is σ = 1084773888. Its totient is φ = 361591280.

The previous prime is 677983651. The next prime is 677983699. The reversal of 677983665 is 566389776.

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

It is not a de Polignac number, because 677983665 - 2¹⁴ = 677967281 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22599441 + ... + 22599470.

It is an arithmetic number, because the mean of its divisors is an integer number (135596736).

Almost surely, 2^677983665 is an apocalyptic number.

It is an amenable number.

677983665 is a deficient number, since it is larger than the sum of its proper divisors (406790223).

677983665 is a wasteful number, since it uses less digits than its factorization.

677983665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45198919.

The product of its digits is 11430720, while the sum is 57.

The square root of 677983665 is about 26038.1194597459. The cubic root of 677983665 is about 878.4959090730.

The spelling of 677983665 in words is "six hundred seventy-seven million, nine hundred eighty-three thousand, six hundred sixty-five".