631774892 has 24 divisors (see below), whose sum is σ = 1282412544. Its totient is φ = 266718672.

The previous prime is 631774853. The next prime is 631774901. The reversal of 631774892 is 298477136.

It is a super-2 number, since 2×631774892² = 798279028323223328, which contains 22 as substring.

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, 166508 + ... + 170259.

It is an arithmetic number, because the mean of its divisors is an integer number (53433856).

Almost surely, 2^631774892 is an apocalyptic number.

It is an amenable number.

631774892 is an abundant number, since it is smaller than the sum of its proper divisors (650637652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

631774892 is a wasteful number, since it uses less digits than its factorization.

631774892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336845 (or 336843 counting only the distinct ones).

The product of its digits is 508032, while the sum is 47.

The square root of 631774892 is about 25135.1326234814. The cubic root of 631774892 is about 858.0661848558.

The spelling of 631774892 in words is "six hundred thirty-one million, seven hundred seventy-four thousand, eight hundred ninety-two".