631416736 has 12 divisors (see below), whose sum is σ = 1243101762. Its totient is φ = 315708352.

The previous prime is 631416727. The next prime is 631416749. The reversal of 631416736 is 637614136.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 477160336 + 154256400 = 21844^2 + 12420^2 .

It is a junction number, because it is equal to n+sod(n) for n = 631416695 and 631416704.

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, 9865855 + ... + 9865918.

Almost surely, 2^631416736 is an apocalyptic number.

It is an amenable number.

631416736 is a deficient number, since it is larger than the sum of its proper divisors (611685026).

631416736 is a wasteful number, since it uses less digits than its factorization.

631416736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19731783 (or 19731775 counting only the distinct ones).

The product of its digits is 54432, while the sum is 37.

The square root of 631416736 is about 25128.0070041378. The cubic root of 631416736 is about 857.9040070249.

The spelling of 631416736 in words is "six hundred thirty-one million, four hundred sixteen thousand, seven hundred thirty-six".