631659974 has 8 divisors (see below), whose sum is σ = 1033625448. Its totient is φ = 287118160.

The previous prime is 631659953. The next prime is 631660013. The reversal of 631659974 is 479956136.

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

It is a congruent 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, 14355887 + ... + 14355930.

It is an arithmetic number, because the mean of its divisors is an integer number (129203181).

Almost surely, 2^631659974 is an apocalyptic number.

631659974 is a deficient number, since it is larger than the sum of its proper divisors (401965474).

631659974 is a wasteful number, since it uses less digits than its factorization.

631659974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28711830.

The product of its digits is 1224720, while the sum is 50.

The square root of 631659974 is about 25132.8465160634. The cubic root of 631659974 is about 858.0141551268.

The spelling of 631659974 in words is "six hundred thirty-one million, six hundred fifty-nine thousand, nine hundred seventy-four".