28628595 has 24 divisors (see below), whose sum is σ = 52543296. Its totient is φ = 14370048.

The previous prime is 28628591. The next prime is 28628603. The reversal of 28628595 is 59582682.

28628595 is a `hidden beast` number, since 286 + 285 + 95 = 666.

It is not a de Polignac number, because 28628595 - 2² = 28628591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 28628595.

It is not an unprimeable number, because it can be changed into a prime (28628591) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17947 + ... + 19476.

It is an arithmetic number, because the mean of its divisors is an integer number (2189304).

Almost surely, 2^28628595 is an apocalyptic number.

28628595 is a deficient number, since it is larger than the sum of its proper divisors (23914701).

28628595 is a wasteful number, since it uses less digits than its factorization.

28628595 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37451 (or 37448 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 28628595 is about 5350.5695958468. The cubic root of 28628595 is about 305.9144641099.

It can be divided in two parts, 2862859 and 5, that added together give a square (2862864 = 1692²).

The spelling of 28628595 in words is "twenty-eight million, six hundred twenty-eight thousand, five hundred ninety-five".