869365225 has 9 divisors (see below), whose sum is σ = 1078195717. Its totient is φ = 695374240.

The previous prime is 869365213. The next prime is 869365241. The reversal of 869365225 is 522563968.

The square root of 869365225 is 29485.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 105616729 + 763748496 = 10277^2 + 27636^2 .

It is not a de Polignac number, because 869365225 - 2⁷ = 869365097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 144477 + ... + 150373.

Almost surely, 2^869365225 is an apocalyptic number.

869365225 is the 29485-th square number.

869365225 is the 14743-rd centered octagonal number.

It is an amenable number.

869365225 is a deficient number, since it is larger than the sum of its proper divisors (208830492).

869365225 is an frugal number, since it uses more digits than its factorization.

869365225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11804 (or 5902 counting only the distinct ones).

The product of its digits is 777600, while the sum is 46.

The cubic root of 869365225 is about 954.4080375192.

The spelling of 869365225 in words is "eight hundred sixty-nine million, three hundred sixty-five thousand, two hundred twenty-five".