680526931 has 8 divisors (see below), whose sum is σ = 778352384. Its totient is φ = 582853320.

The previous prime is 680526923. The next prime is 680526941. The reversal of 680526931 is 139625086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 680526931 - 2³ = 680526923 is a prime.

It is a super-2 number, since 2×680526931² = 926233807632557522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680526941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28185 + ... + 46426.

It is an arithmetic number, because the mean of its divisors is an integer number (97294048).

Almost surely, 2^680526931 is an apocalyptic number.

680526931 is a deficient number, since it is larger than the sum of its proper divisors (97825453).

680526931 is a wasteful number, since it uses less digits than its factorization.

680526931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75921.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 680526931 is about 26086.9111049967. The cubic root of 680526931 is about 879.5930155766.

The spelling of 680526931 in words is "six hundred eighty million, five hundred twenty-six thousand, nine hundred thirty-one".