28475265 has 64 divisors (see below), whose sum is σ = 58576896. Its totient is φ = 11480832.

The previous prime is 28475263. The next prime is 28475287. The reversal of 28475265 is 56257482.

It is not a de Polignac number, because 28475265 - 2¹ = 28475263 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (28475261) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30942 + ... + 31848.

It is an arithmetic number, because the mean of its divisors is an integer number (915264).

Almost surely, 2^28475265 is an apocalyptic number.

It is an amenable number.

28475265 is an abundant number, since it is smaller than the sum of its proper divisors (30101631).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28475265 is a wasteful number, since it uses less digits than its factorization.

28475265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958.

The product of its digits is 134400, while the sum is 39.

The square root of 28475265 is about 5336.2219781415. The cubic root of 28475265 is about 305.3673438286.

The spelling of 28475265 in words is "twenty-eight million, four hundred seventy-five thousand, two hundred sixty-five".