631030984 has 8 divisors (see below), whose sum is σ = 1183183110. Its totient is φ = 315515488.

The previous prime is 631030937. The next prime is 631030997. The reversal of 631030984 is 489030136.

It can be written as a sum of positive squares in only one way, i.e., 601328484 + 29702500 = 24522^2 + 5450^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39439429 + ... + 39439444.

Almost surely, 2^631030984 is an apocalyptic number.

It is an amenable number.

631030984 is a deficient number, since it is larger than the sum of its proper divisors (552152126).

631030984 is a wasteful number, since it uses less digits than its factorization.

631030984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78878879 (or 78878875 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 631030984 is about 25120.3300933726. The cubic root of 631030984 is about 857.7292647435.

The spelling of 631030984 in words is "six hundred thirty-one million, thirty thousand, nine hundred eighty-four".