631713601 has 4 divisors (see below), whose sum is σ = 631764400. Its totient is φ = 631662804.

The previous prime is 631713569. The next prime is 631713611. The reversal of 631713601 is 106317136.

631713601 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 631713601 - 2⁵ = 631713569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 631713601.

It is not an unprimeable number, because it can be changed into a prime (631713611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7210 + ... + 36268.

It is an arithmetic number, because the mean of its divisors is an integer number (157941100).

Almost surely, 2^631713601 is an apocalyptic number.

It is an amenable number.

631713601 is a deficient number, since it is larger than the sum of its proper divisors (50799).

631713601 is a wasteful number, since it uses less digits than its factorization.

631713601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50798.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 631713601 is about 25133.9133642177. The cubic root of 631713601 is about 858.0384358184.

The spelling of 631713601 in words is "six hundred thirty-one million, seven hundred thirteen thousand, six hundred one".