680710531 has 8 divisors (see below), whose sum is σ = 695436480. Its totient is φ = 666137472.

The previous prime is 680710519. The next prime is 680710543. The reversal of 680710531 is 135017086.

It is an interprime number because it is at equal distance from previous prime (680710519) and next prime (680710543).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-680710531 is a prime.

It is a super-2 number, since 2×680710531² = 926733654028603922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 680710493 and 680710502.

It is not an unprimeable number, because it can be changed into a prime (680710501) 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, 29200 + ... + 47053.

It is an arithmetic number, because the mean of its divisors is an integer number (86929560).

Almost surely, 2^680710531 is an apocalyptic number.

680710531 is a deficient number, since it is larger than the sum of its proper divisors (14725949).

680710531 is a wasteful number, since it uses less digits than its factorization.

680710531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76445.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 680710531 is about 26090.4298738062. The cubic root of 680710531 is about 879.6721105393.

The spelling of 680710531 in words is "six hundred eighty million, seven hundred ten thousand, five hundred thirty-one".