28795554 has 32 divisors (see below), whose sum is σ = 64208640. Its totient is φ = 9565776.

The previous prime is 28795553. The next prime is 28795561. The reversal of 28795554 is 45559782.

28795554 is a `hidden beast` number, since 2 + 8 + 7 + 95 + 554 = 666.

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

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 15 ways as a sum of consecutive naturals, for example, 19092 + ... + 20544.

It is an arithmetic number, because the mean of its divisors is an integer number (2006520).

Almost surely, 2^28795554 is an apocalyptic number.

28795554 is an abundant number, since it is smaller than the sum of its proper divisors (35413086).

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

28795554 is a wasteful number, since it uses less digits than its factorization.

28795554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831 (or 1825 counting only the distinct ones).

The product of its digits is 504000, while the sum is 45.

The square root of 28795554 is about 5366.1488984187. The cubic root of 28795554 is about 306.5079989432.

The spelling of 28795554 in words is "twenty-eight million, seven hundred ninety-five thousand, five hundred fifty-four".