768681 has 12 divisors (see below), whose sum is σ = 1118208. Its totient is φ = 508824.

The previous prime is 768671. The next prime is 768727. The reversal of 768681 is 186867.

768681 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 768681 - 2⁹ = 768169 is a prime.

It is a super-2 number, since 2×768681² = 1181740959522, which contains 22 as substring.

768681 is strictly pandigital in base 7.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (768631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1816 + ... + 2198.

It is an arithmetic number, because the mean of its divisors is an integer number (93184).

2⁷⁶⁸⁶⁸¹ is an apocalyptic number.

It is an amenable number.

768681 is a deficient number, since it is larger than the sum of its proper divisors (349527).

768681 is a wasteful number, since it uses less digits than its factorization.

768681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 609 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 768681 is about 876.7445466041. The cubic root of 768681 is about 91.6041991299.

The spelling of 768681 in words is "seven hundred sixty-eight thousand, six hundred eighty-one".