680701264 has 10 divisors (see below), whose sum is σ = 1318858730. Its totient is φ = 340350624.

The previous prime is 680701249. The next prime is 680701279. The reversal of 680701264 is 462107086.

It is an interprime number because it is at equal distance from previous prime (680701249) and next prime (680701279).

It can be written as a sum of positive squares in only one way, i.e., 506250000 + 174451264 = 22500^2 + 13208^2 .

It is a super-2 number, since 2×680701264² = 926708421622395392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21271899 + ... + 21271930.

It is an arithmetic number, because the mean of its divisors is an integer number (131885873).

Almost surely, 2^680701264 is an apocalyptic number.

It is an amenable number.

680701264 is a deficient number, since it is larger than the sum of its proper divisors (638157466).

680701264 is a wasteful number, since it uses less digits than its factorization.

680701264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42543837 (or 42543831 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 680701264 is about 26090.2522793475. The cubic root of 680701264 is about 879.6681186524.

The spelling of 680701264 in words is "six hundred eighty million, seven hundred one thousand, two hundred sixty-four".