631677698 has 8 divisors (see below), whose sum is σ = 950564160. Its totient is φ = 314822980.

The previous prime is 631677671. The next prime is 631677703. The reversal of 631677698 is 896776136.

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

It is a Curzon number.

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, 507158 + ... + 508401.

It is an arithmetic number, because the mean of its divisors is an integer number (118820520).

Almost surely, 2^631677698 is an apocalyptic number.

631677698 is a deficient number, since it is larger than the sum of its proper divisors (318886462).

631677698 is a wasteful number, since it uses less digits than its factorization.

631677698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015872.

The product of its digits is 2286144, while the sum is 53.

The square root of 631677698 is about 25133.1991198892. The cubic root of 631677698 is about 858.0221801726.

It can be divided in two parts, 63 and 1677698, that added together give a palindrome (1677761).

The spelling of 631677698 in words is "six hundred thirty-one million, six hundred seventy-seven thousand, six hundred ninety-eight".