28470925 has 12 divisors (see below), whose sum is σ = 40347616. Its totient is φ = 19522800.

The previous prime is 28470919. The next prime is 28470931. The reversal of 28470925 is 52907482.

It is an interprime number because it is at equal distance from previous prime (28470919) and next prime (28470931).

It is not a de Polignac number, because 28470925 - 2³ = 28470917 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81171 + ... + 81520.

Almost surely, 2^28470925 is an apocalyptic number.

28470925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28470925 is a deficient number, since it is larger than the sum of its proper divisors (11876691).

28470925 is a wasteful number, since it uses less digits than its factorization.

28470925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162708 (or 162703 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 28470925 is about 5335.8153078981. The cubic root of 28470925 is about 305.3518290581.

The spelling of 28470925 in words is "twenty-eight million, four hundred seventy thousand, nine hundred twenty-five".