812725 has 24 divisors (see below), whose sum is σ = 1116000. Its totient is φ = 584640.

The previous prime is 812717. The next prime is 812731. The reversal of 812725 is 527218.

It is not a de Polignac number, because 812725 - 2³ = 812717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an alternating number because its digits alternate between even and odd.

Its product of digits (1120) is a multiple of the sum of its prime divisors (112).

It is a self number, because there is not a number n which added to its sum of digits gives 812725.

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 23 ways as a sum of consecutive naturals, for example, 13746 + ... + 13804.

It is an arithmetic number, because the mean of its divisors is an integer number (46500).

2⁸¹²⁷²⁵ is an apocalyptic number.

It is an amenable number.

812725 is a deficient number, since it is larger than the sum of its proper divisors (303275).

812725 is a wasteful number, since it uses less digits than its factorization.

812725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 112 counting only the distinct ones).

The product of its digits is 1120, while the sum is 25.

The square root of 812725 is about 901.5126177708. The cubic root of 812725 is about 93.3213916127.

The spelling of 812725 in words is "eight hundred twelve thousand, seven hundred twenty-five".