631232872 has 16 divisors (see below), whose sum is σ = 1188280800. Its totient is φ = 314358000.

The previous prime is 631232869. The next prime is 631232873. The reversal of 631232872 is 278232136.

It is not an unprimeable number, because it can be changed into a prime (631232873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155172 + ... + 159187.

It is an arithmetic number, because the mean of its divisors is an integer number (74267550).

Almost surely, 2^631232872 is an apocalyptic number.

It is an amenable number.

631232872 is a deficient number, since it is larger than the sum of its proper divisors (557047928).

631232872 is a wasteful number, since it uses less digits than its factorization.

631232872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314616 (or 314612 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 631232872 is about 25124.3481905501. The cubic root of 631232872 is about 857.8207271208.

The spelling of 631232872 in words is "six hundred thirty-one million, two hundred thirty-two thousand, eight hundred seventy-two".