865937 has 2 divisors, whose sum is σ = 865938. Its totient is φ = 865936.

The previous prime is 865933. The next prime is 865957. The reversal of 865937 is 739568.

865937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 591361 + 274576 = 769^2 + 524^2 .

It is a cyclic number.

It is not a de Polignac number, because 865937 - 2² = 865933 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 865937.

It is not a weakly prime, because it can be changed into another prime (865933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432968 + 432969.

It is an arithmetic number, because the mean of its divisors is an integer number (432969).

2⁸⁶⁵⁹³⁷ is an apocalyptic number.

It is an amenable number.

865937 is a deficient number, since it is larger than the sum of its proper divisors (1).

865937 is an equidigital number, since it uses as much as digits as its factorization.

865937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 38.

The square root of 865937 is about 930.5573598656. The cubic root of 865937 is about 95.3151858242.

The spelling of 865937 in words is "eight hundred sixty-five thousand, nine hundred thirty-seven".