696681 has 24 divisors (see below), whose sum is σ = 1083264. Its totient is φ = 447120.

The previous prime is 696679. The next prime is 696691. The reversal of 696681 is 186696.

It is not a de Polignac number, because 696681 - 2¹ = 696679 is a prime.

It is a super-2 number, since 2×696681² = 970728831522, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 696681.

It is not an unprimeable number, because it can be changed into a prime (696611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11391 + ... + 11451.

It is an arithmetic number, because the mean of its divisors is an integer number (45136).

2⁶⁹⁶⁶⁸¹ is an apocalyptic number.

696681 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

696681 is a deficient number, since it is larger than the sum of its proper divisors (386583).

696681 is an equidigital number, since it uses as much as digits as its factorization.

696681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 111 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 696681 is about 834.6741879320. The cubic root of 696681 is about 88.6498466848.

The spelling of 696681 in words is "six hundred ninety-six thousand, six hundred eighty-one".