28795555 has 4 divisors (see below), whose sum is σ = 34554672. Its totient is φ = 23036440.

The previous prime is 28795553. The next prime is 28795561. The reversal of 28795555 is 55559782.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 28795555 - 2¹ = 28795553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28795553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2879551 + ... + 2879560.

It is an arithmetic number, because the mean of its divisors is an integer number (8638668).

Almost surely, 2^28795555 is an apocalyptic number.

28795555 is a deficient number, since it is larger than the sum of its proper divisors (5759117).

28795555 is an equidigital number, since it uses as much as digits as its factorization.

28795555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5759116.

The product of its digits is 630000, while the sum is 46.

The square root of 28795555 is about 5366.1489915954. The cubic root of 28795555 is about 306.5080024913.

The spelling of 28795555 in words is "twenty-eight million, seven hundred ninety-five thousand, five hundred fifty-five".