631690914 has 8 divisors (see below), whose sum is σ = 1263381840. Its totient is φ = 210563636.

The previous prime is 631690909. The next prime is 631690919. The reversal of 631690914 is 419096136.

631690914 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (631690909) and next prime (631690919).

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

631690914 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (631690919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52640904 + ... + 52640915.

It is an arithmetic number, because the mean of its divisors is an integer number (157922730).

Almost surely, 2^631690914 is an apocalyptic number.

631690914 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

631690914 is a wasteful number, since it uses less digits than its factorization.

631690914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105281824.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 631690914 is about 25133.4620376899. The cubic root of 631690914 is about 858.0281639953.

The spelling of 631690914 in words is "six hundred thirty-one million, six hundred ninety thousand, nine hundred fourteen".