865697 has 16 divisors (see below), whose sum is σ = 1090560. Its totient is φ = 670032.

The previous prime is 865687. The next prime is 865717. The reversal of 865697 is 796568.

It is a happy number.

865697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 865697 - 2⁴ = 865681 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2918 + ... + 3200.

It is an arithmetic number, because the mean of its divisors is an integer number (68160).

2⁸⁶⁵⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

865697 is a deficient number, since it is larger than the sum of its proper divisors (224863).

865697 is a wasteful number, since it uses less digits than its factorization.

865697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332.

The product of its digits is 90720, while the sum is 41.

The square root of 865697 is about 930.4283959553. The cubic root of 865697 is about 95.3063792719.

The spelling of 865697 in words is "eight hundred sixty-five thousand, six hundred ninety-seven".