631707 has 16 divisors (see below), whose sum is σ = 894240. Its totient is φ = 396032.

The previous prime is 631681. The next prime is 631711. The reversal of 631707 is 707136.

It is a cyclic number.

It is not a de Polignac number, because 631707 - 2⁶ = 631643 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 631707.

It is not an unprimeable number, because it can be changed into a prime (631717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4543 + ... + 4679.

It is an arithmetic number, because the mean of its divisors is an integer number (55890).

2⁶³¹⁷⁰⁷ is an apocalyptic number.

631707 is a deficient number, since it is larger than the sum of its proper divisors (262533).

631707 is a wasteful number, since it uses less digits than its factorization.

631707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222.

The product of its (nonzero) digits is 882, while the sum is 24.

The square root of 631707 is about 794.7999748364. The cubic root of 631707 is about 85.8035447158.

It can be divided in two parts, 63 and 1707, that added together give a triangular number (1770 = T₅₉).

The spelling of 631707 in words is "six hundred thirty-one thousand, seven hundred seven".