28574825 has 24 divisors (see below), whose sum is σ = 36747648. Its totient is φ = 22028480.

The previous prime is 28574797. The next prime is 28574837. The reversal of 28574825 is 52847582.

It is not a de Polignac number, because 28574825 - 2⁶ = 28574761 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97379 + ... + 97671.

It is an arithmetic number, because the mean of its divisors is an integer number (1531152).

Almost surely, 2^28574825 is an apocalyptic number.

28574825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28574825 is a deficient number, since it is larger than the sum of its proper divisors (8172823).

28574825 is a wasteful number, since it uses less digits than its factorization.

28574825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 428 counting only the distinct ones).

The product of its digits is 179200, while the sum is 41.

The square root of 28574825 is about 5345.5425356085. The cubic root of 28574825 is about 305.7228220397.

The spelling of 28574825 in words is "twenty-eight million, five hundred seventy-four thousand, eight hundred twenty-five".