28858325 has 12 divisors (see below), whose sum is σ = 35975748. Its totient is φ = 22963200.

The previous prime is 28858243. The next prime is 28858331. The reversal of 28858325 is 52385882.

It can be written as a sum of positive squares in 6 ways, for example, as 8868484 + 19989841 = 2978^2 + 4471^2 .

It is not a de Polignac number, because 28858325 - 2⁸ = 28858069 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 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, 1835 + ... + 7815.

It is an arithmetic number, because the mean of its divisors is an integer number (2997979).

Almost surely, 2^28858325 is an apocalyptic number.

28858325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28858325 is a deficient number, since it is larger than the sum of its proper divisors (7117423).

28858325 is a wasteful number, since it uses less digits than its factorization.

28858325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6184 (or 6179 counting only the distinct ones).

The product of its digits is 153600, while the sum is 41.

The square root of 28858325 is about 5371.9945085601. The cubic root of 28858325 is about 306.7305547159.

The spelling of 28858325 in words is "twenty-eight million, eight hundred fifty-eight thousand, three hundred twenty-five".