28455908 has 12 divisors (see below), whose sum is σ = 53628540. Its totient is φ = 13133472.

The previous prime is 28455893. The next prime is 28455929. The reversal of 28455908 is 80955482.

It can be written as a sum of positive squares in 2 ways, for example, as 10291264 + 18164644 = 3208^2 + 4262^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 273563 + ... + 273666.

It is an arithmetic number, because the mean of its divisors is an integer number (4469045).

Almost surely, 2^28455908 is an apocalyptic number.

It is an amenable number.

28455908 is a deficient number, since it is larger than the sum of its proper divisors (25172632).

28455908 is a wasteful number, since it uses less digits than its factorization.

28455908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547246 (or 547244 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 28455908 is about 5334.4079334074. The cubic root of 28455908 is about 305.2981336377.

The spelling of 28455908 in words is "twenty-eight million, four hundred fifty-five thousand, nine hundred eight".