985725 has 36 divisors (see below), whose sum is σ = 1906996. Its totient is φ = 483840.

The previous prime is 985723. The next prime is 985729. The reversal of 985725 is 527589.

It can be written as a sum of positive squares in 6 ways, for example, as 191844 + 793881 = 438^2 + 891^2 .

It is not a de Polignac number, because 985725 - 2¹ = 985723 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 985725.

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 985725.

It is not an unprimeable number, because it can be changed into a prime (985723) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2757 + ... + 3093.

2⁹⁸⁵⁷²⁵ is an apocalyptic number.

It is an amenable number.

985725 is a deficient number, since it is larger than the sum of its proper divisors (921271).

985725 is a wasteful number, since it uses less digits than its factorization.

985725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 358 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 985725 is about 992.8368446024. The cubic root of 985725 is about 99.5218843642.

Multiplying 985725 by its sum of digits (36), we get a triangular number (35486100 = T₈₄₂₄).

The spelling of 985725 in words is "nine hundred eighty-five thousand, seven hundred twenty-five".