28708450 has 12 divisors (see below), whose sum is σ = 53397810. Its totient is φ = 11483360.

The previous prime is 28708429. The next prime is 28708453. The reversal of 28708450 is 5480782.

It can be written as a sum of positive squares in 3 ways, for example, as 25170289 + 3538161 = 5017^2 + 1881^2 .

It is not an unprimeable number, because it can be changed into a prime (28708453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 287035 + ... + 287134.

Almost surely, 2^28708450 is an apocalyptic number.

28708450 is a deficient number, since it is larger than the sum of its proper divisors (24689360).

28708450 is a wasteful number, since it uses less digits than its factorization.

28708450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574181 (or 574176 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 28708450 is about 5358.0266889966. The cubic root of 28708450 is about 306.1986336174.

The spelling of 28708450 in words is "twenty-eight million, seven hundred eight thousand, four hundred fifty".