28349125 has 32 divisors (see below), whose sum is σ = 40884480. Its totient is φ = 19224000.

The previous prime is 28349099. The next prime is 28349129. The reversal of 28349125 is 52194382.

It is not a de Polignac number, because 28349125 - 2¹⁷ = 28218053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28349129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156535 + ... + 156715.

It is an arithmetic number, because the mean of its divisors is an integer number (1277640).

Almost surely, 2^28349125 is an apocalyptic number.

28349125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28349125 is a deficient number, since it is larger than the sum of its proper divisors (12535355).

28349125 is a wasteful number, since it uses less digits than its factorization.

28349125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 372 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 28349125 is about 5324.3896363809. The cubic root of 28349125 is about 304.9157699864.

The spelling of 28349125 in words is "twenty-eight million, three hundred forty-nine thousand, one hundred twenty-five".