682631 has 4 divisors (see below), whose sum is σ = 706200. Its totient is φ = 659064.

The previous prime is 682607. The next prime is 682637. The reversal of 682631 is 136286.

682631 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.

It is a cyclic number.

It is not a de Polignac number, because 682631 - 2¹⁰ = 681607 is a prime.

It is a super-2 number, since 2×682631² = 931970164322, which contains 22 as substring.

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 682631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682637) 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, 11741 + ... + 11798.

It is an arithmetic number, because the mean of its divisors is an integer number (176550).

2⁶⁸²⁶³¹ is an apocalyptic number.

682631 is a deficient number, since it is larger than the sum of its proper divisors (23569).

682631 is a wasteful number, since it uses less digits than its factorization.

682631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23568.

The product of its digits is 1728, while the sum is 26.

The square root of 682631 is about 826.2148630956. The cubic root of 682631 is about 88.0498598300.

The spelling of 682631 in words is "six hundred eighty-two thousand, six hundred thirty-one".