631706942 has 16 divisors (see below), whose sum is σ = 980985600. Its totient is φ = 304728480.

The previous prime is 631706909. The next prime is 631706953. The reversal of 631706942 is 249607136.

It is a junction number, because it is equal to n+sod(n) for n = 631706896 and 631706905.

It is a congruent number.

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, 90659 + ... + 97377.

It is an arithmetic number, because the mean of its divisors is an integer number (61311600).

Almost surely, 2^631706942 is an apocalyptic number.

631706942 is a deficient number, since it is larger than the sum of its proper divisors (349278658).

631706942 is a wasteful number, since it uses less digits than its factorization.

631706942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8371.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 631706942 is about 25133.7808934509. The cubic root of 631706942 is about 858.0354208983.

The spelling of 631706942 in words is "six hundred thirty-one million, seven hundred six thousand, nine hundred forty-two".