815696 has 20 divisors (see below), whose sum is σ = 1806432. Its totient is φ = 349536.

The previous prime is 815693. The next prime is 815713. The reversal of 815696 is 696518.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (815693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3530 + ... + 3753.

2⁸¹⁵⁶⁹⁶ is an apocalyptic number.

It is an amenable number.

815696 is an abundant number, since it is smaller than the sum of its proper divisors (990736).

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

815696 is a wasteful number, since it uses less digits than its factorization.

815696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7298 (or 7292 counting only the distinct ones).

The product of its digits is 12960, while the sum is 35.

The square root of 815696 is about 903.1589007478. The cubic root of 815696 is about 93.4349686491.

The spelling of 815696 in words is "eight hundred fifteen thousand, six hundred ninety-six".