28754275 has 12 divisors (see below), whose sum is σ = 38897064. Its totient is φ = 20912000.

The previous prime is 28754273. The next prime is 28754279. The reversal of 28754275 is 57245782.

It is a happy number.

It is not a de Polignac number, because 28754275 - 2¹ = 28754273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28754273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52006 + ... + 52555.

It is an arithmetic number, because the mean of its divisors is an integer number (3241422).

Almost surely, 2^28754275 is an apocalyptic number.

28754275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28754275 is a deficient number, since it is larger than the sum of its proper divisors (10142789).

28754275 is a wasteful number, since it uses less digits than its factorization.

28754275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104582 (or 104577 counting only the distinct ones).

The product of its digits is 156800, while the sum is 40.

The square root of 28754275 is about 5362.3012783692. The cubic root of 28754275 is about 306.3614671290.

The spelling of 28754275 in words is "twenty-eight million, seven hundred fifty-four thousand, two hundred seventy-five".