631713 has 16 divisors (see below), whose sum is σ = 887040. Its totient is φ = 399504.

The previous prime is 631711. The next prime is 631717. The reversal of 631713 is 317136.

It is not a de Polignac number, because 631713 - 2¹ = 631711 is a prime.

It is a super-2 number, since 2×631713² = 798122628738, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 631713.

It is not an unprimeable number, because it can be changed into a prime (631711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7570 + ... + 7652.

It is an arithmetic number, because the mean of its divisors is an integer number (55440).

2⁶³¹⁷¹³ is an apocalyptic number.

It is an amenable number.

631713 is a deficient number, since it is larger than the sum of its proper divisors (255327).

631713 is a wasteful number, since it uses less digits than its factorization.

631713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188.

The product of its digits is 378, while the sum is 21.

The square root of 631713 is about 794.8037493621. The cubic root of 631713 is about 85.8038163711.

Adding to 631713 its reverse (317136), we get a palindrome (948849).

The spelling of 631713 in words is "six hundred thirty-one thousand, seven hundred thirteen".