682685631 has 32 divisors (see below), whose sum is σ = 1041412800. Its totient is φ = 441676800.

The previous prime is 682685623. The next prime is 682685651. The reversal of 682685631 is 136586286.

682685631 is a `hidden beast` number, since 6 + 8 + 2 + 6 + 8 + 5 + 631 = 666.

It is not a de Polignac number, because 682685631 - 2³ = 682685623 is a prime.

It is a super-2 number, since 2×682685631² = 932119341547736322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682685611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 567831 + ... + 569031.

It is an arithmetic number, because the mean of its divisors is an integer number (32544150).

Almost surely, 2^682685631 is an apocalyptic number.

682685631 is a deficient number, since it is larger than the sum of its proper divisors (358727169).

682685631 is a wasteful number, since it uses less digits than its factorization.

682685631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816 (or 1810 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 682685631 is about 26128.2535007604. The cubic root of 682685631 is about 880.5220864590.

The spelling of 682685631 in words is "six hundred eighty-two million, six hundred eighty-five thousand, six hundred thirty-one".