631429896 has 16 divisors (see below), whose sum is σ = 1578574800. Its totient is φ = 210476624.

The previous prime is 631429871. The next prime is 631429919. The reversal of 631429896 is 698924136.

It is a super-3 number, since 3×631429896³ (a number of 27 digits) contains 333 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 13154766 + ... + 13154813.

It is an arithmetic number, because the mean of its divisors is an integer number (98660925).

Almost surely, 2^631429896 is an apocalyptic number.

It is an amenable number.

631429896 is an abundant number, since it is smaller than the sum of its proper divisors (947144904).

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

631429896 is a wasteful number, since it uses less digits than its factorization.

631429896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26309588 (or 26309584 counting only the distinct ones).

The product of its digits is 559872, while the sum is 48.

The square root of 631429896 is about 25128.2688619809. The cubic root of 631429896 is about 857.9099671342.

The spelling of 631429896 in words is "six hundred thirty-one million, four hundred twenty-nine thousand, eight hundred ninety-six".