28258675 has 12 divisors (see below), whose sum is σ = 37102536. Its totient is φ = 21276800.

The previous prime is 28258669. The next prime is 28258691. The reversal of 28258675 is 57685282.

It is not a de Polignac number, because 28258675 - 2³ = 28258667 is a prime.

It is a Duffinian 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, 32821 + ... + 33670.

It is an arithmetic number, because the mean of its divisors is an integer number (3091878).

Almost surely, 2^28258675 is an apocalyptic number.

28258675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28258675 is a deficient number, since it is larger than the sum of its proper divisors (8843861).

28258675 is a wasteful number, since it uses less digits than its factorization.

28258675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66518 (or 66513 counting only the distinct ones).

The product of its digits is 268800, while the sum is 43.

The square root of 28258675 is about 5315.8889190802. Note that the first 3 decimals coincide. The cubic root of 28258675 is about 304.5911389778.

The spelling of 28258675 in words is "twenty-eight million, two hundred fifty-eight thousand, six hundred seventy-five".