900890625 has 28 divisors (see below), whose sum is σ = 1501543280. Its totient is φ = 480450000.

The previous prime is 900890623. The next prime is 900890677. The reversal of 900890625 is 526098009.

It is a happy number.

It is not a de Polignac number, because 900890625 - 2¹ = 900890623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (900890623) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 37266 + ... + 56484.

It is a Proth number, since it is equal to 27493 ⋅ 2¹⁵ + 1 and 27493 < 2¹⁵.

Almost surely, 2^900890625 is an apocalyptic number.

It is an amenable number.

900890625 is a deficient number, since it is larger than the sum of its proper divisors (600652655).

900890625 is an frugal number, since it uses more digits than its factorization.

900890625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19252 (or 19227 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 900890625 is about 30014.8400795340. The cubic root of 900890625 is about 965.8077570112.

The spelling of 900890625 in words is "nine hundred million, eight hundred ninety thousand, six hundred twenty-five".