28366925 has 24 divisors (see below), whose sum is σ = 36426240. Its totient is φ = 21902400.

The previous prime is 28366909. The next prime is 28366937. The reversal of 28366925 is 52966382.

It is not a de Polignac number, because 28366925 - 2⁴ = 28366909 is a prime.

It is a congruent 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, 104540 + ... + 104810.

It is an arithmetic number, because the mean of its divisors is an integer number (1517760).

Almost surely, 2^28366925 is an apocalyptic number.

28366925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28366925 is a deficient number, since it is larger than the sum of its proper divisors (8059315).

28366925 is a wasteful number, since it uses less digits than its factorization.

28366925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413 (or 408 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 28366925 is about 5326.0609271769. The cubic root of 28366925 is about 304.9795740151.

The spelling of 28366925 in words is "twenty-eight million, three hundred sixty-six thousand, nine hundred twenty-five".