631383982 has 4 divisors (see below), whose sum is σ = 947075976. Its totient is φ = 315691990.

The previous prime is 631383967. The next prime is 631384031. The reversal of 631383982 is 289383136.

631383982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157845994 + ... + 157845997.

It is an arithmetic number, because the mean of its divisors is an integer number (236768994).

Almost surely, 2^631383982 is an apocalyptic number.

631383982 is a deficient number, since it is larger than the sum of its proper divisors (315691994).

631383982 is a wasteful number, since it uses less digits than its factorization.

631383982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315691993.

The product of its digits is 186624, while the sum is 43.

The square root of 631383982 is about 25127.3552527917. The cubic root of 631383982 is about 857.8891725148.

The spelling of 631383982 in words is "six hundred thirty-one million, three hundred eighty-three thousand, nine hundred eighty-two".