631488039 has 32 divisors (see below), whose sum is σ = 1057459200. Its totient is φ = 333085536.

The previous prime is 631488037. The next prime is 631488041. The reversal of 631488039 is 930884136.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (631488037) and next prime (631488041).

It is not a de Polignac number, because 631488039 - 2¹ = 631488037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631488037) 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 31 ways as a sum of consecutive naturals, for example, 10227 + ... + 36980.

It is an arithmetic number, because the mean of its divisors is an integer number (33045600).

Almost surely, 2^631488039 is an apocalyptic number.

631488039 is a deficient number, since it is larger than the sum of its proper divisors (425971161).

631488039 is a wasteful number, since it uses less digits than its factorization.

631488039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47244 (or 47230 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 631488039 is about 25129.4257594558. The cubic root of 631488039 is about 857.9362988661.

The spelling of 631488039 in words is "six hundred thirty-one million, four hundred eighty-eight thousand, thirty-nine".