631666484 has 24 divisors (see below), whose sum is σ = 1175368320. Its totient is φ = 296003456.

The previous prime is 631666367. The next prime is 631666489. The reversal of 631666484 is 484666136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631666489) 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, 3182 + ... + 35685.

It is an arithmetic number, because the mean of its divisors is an integer number (48973680).

Almost surely, 2^631666484 is an apocalyptic number.

It is an amenable number.

631666484 is a deficient number, since it is larger than the sum of its proper divisors (543701836).

631666484 is a wasteful number, since it uses less digits than its factorization.

631666484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39127 (or 39125 counting only the distinct ones).

The product of its digits is 497664, while the sum is 44.

The square root of 631666484 is about 25132.9760275221. The cubic root of 631666484 is about 858.0171027321.

The spelling of 631666484 in words is "six hundred thirty-one million, six hundred sixty-six thousand, four hundred eighty-four".