862890625 has 27 divisors (see below), whose sum is σ = 1102050217. Its totient is φ = 675625000.

The previous prime is 862890617. The next prime is 862890661. The reversal of 862890625 is 526098268.

The square root of 862890625 is 29375.

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

862890625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 613503361 + 249387264 = 24769^2 + 15792^2 .

It is not a de Polignac number, because 862890625 - 2³ = 862890617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 18359352 + ... + 18359398.

Almost surely, 2^862890625 is an apocalyptic number.

862890625 is the 29375-th square number.

862890625 is the 14688-th centered octagonal number.

It is an amenable number.

862890625 is a deficient number, since it is larger than the sum of its proper divisors (239159592).

862890625 is an frugal number, since it uses more digits than its factorization.

862890625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The cubic root of 862890625 is about 952.0328123621.

The spelling of 862890625 in words is "eight hundred sixty-two million, eight hundred ninety thousand, six hundred twenty-five".