256696 has 16 divisors (see below), whose sum is σ = 525240. Its totient is φ = 116640.

The previous prime is 256687. The next prime is 256699. The reversal of 256696 is 696652.

256696 is nontrivially palindromic in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256699) by changing a digit.

256696 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1371 + ... + 1546.

2²⁵⁶⁶⁹⁶ is an apocalyptic number.

It is an amenable number.

256696 is an abundant number, since it is smaller than the sum of its proper divisors (268544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256696 is a wasteful number, since it uses less digits than its factorization.

256696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2934 (or 2930 counting only the distinct ones).

The product of its digits is 19440, while the sum is 34.

The square root of 256696 is about 506.6517541665. The cubic root of 256696 is about 63.5535332969.

It can be divided in two parts, 2566 and 96, that added together give a palindrome (2662).

The spelling of 256696 in words is "two hundred fifty-six thousand, six hundred ninety-six".