869525 has 6 divisors (see below), whose sum is σ = 1078242. Its totient is φ = 695600.

The previous prime is 869521. The next prime is 869543. The reversal of 869525 is 525968.

It can be written as a sum of positive squares in 3 ways, for example, as 24964 + 844561 = 158^2 + 919^2 .

It is not a de Polignac number, because 869525 - 2² = 869521 is a prime.

It is a Duffinian number.

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 869525.

It is not an unprimeable number, because it can be changed into a prime (869521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17366 + ... + 17415.

It is an arithmetic number, because the mean of its divisors is an integer number (179707).

2⁸⁶⁹⁵²⁵ is an apocalyptic number.

It is an amenable number.

869525 is a deficient number, since it is larger than the sum of its proper divisors (208717).

869525 is a wasteful number, since it uses less digits than its factorization.

869525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34791 (or 34786 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 869525 is about 932.4832438173. The cubic root of 869525 is about 95.4466502094.

The spelling of 869525 in words is "eight hundred sixty-nine thousand, five hundred twenty-five".