682812931 has 4 divisors (see below), whose sum is σ = 683164864. Its totient is φ = 682461000.

The previous prime is 682812919. The next prime is 682812941. The reversal of 682812931 is 139218286.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 139218286 = 2 ⋅69609143.

It is a cyclic number.

It is not a de Polignac number, because 682812931 - 2¹¹ = 682810883 is a prime.

It is a super-2 number, since 2×682812931² = 932466997481621522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (682812901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173040 + ... + 176941.

It is an arithmetic number, because the mean of its divisors is an integer number (170791216).

Almost surely, 2^682812931 is an apocalyptic number.

682812931 is a deficient number, since it is larger than the sum of its proper divisors (351933).

682812931 is a wasteful number, since it uses less digits than its factorization.

682812931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351932.

The product of its digits is 41472, while the sum is 40.

The square root of 682812931 is about 26130.6894474677. The cubic root of 682812931 is about 880.5768132079.

The spelling of 682812931 in words is "six hundred eighty-two million, eight hundred twelve thousand, nine hundred thirty-one".