631572671 has 8 divisors (see below), whose sum is σ = 635209344. Its totient is φ = 627945880.

The previous prime is 631572659. The next prime is 631572719. The reversal of 631572671 is 176275136.

631572671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 631572671 - 2²⁶ = 564463807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631572971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152336 + ... + 156426.

It is an arithmetic number, because the mean of its divisors is an integer number (79401168).

Almost surely, 2^631572671 is an apocalyptic number.

631572671 is a deficient number, since it is larger than the sum of its proper divisors (3636673).

631572671 is a wasteful number, since it uses less digits than its factorization.

631572671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4941.

The product of its digits is 52920, while the sum is 38.

The square root of 631572671 is about 25131.1096253230. The cubic root of 631572671 is about 857.9746240161.

The spelling of 631572671 in words is "six hundred thirty-one million, five hundred seventy-two thousand, six hundred seventy-one".