869725 has 12 divisors (see below), whose sum is σ = 1135840. Its totient is φ = 658800.

The previous prime is 869717. The next prime is 869747. The reversal of 869725 is 527968.

It is not a de Polignac number, because 869725 - 2³ = 869717 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable 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 11 ways as a sum of consecutive naturals, for example, 441 + ... + 1390.

2⁸⁶⁹⁷²⁵ is an apocalyptic number.

It is an amenable number.

869725 is a deficient number, since it is larger than the sum of its proper divisors (266115).

869725 is a wasteful number, since it uses less digits than its factorization.

869725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860 (or 1855 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 869725 is about 932.5904781843. The cubic root of 869725 is about 95.4539675633.

The spelling of 869725 in words is "eight hundred sixty-nine thousand, seven hundred twenty-five".