28054499 has 6 divisors (see below), whose sum is σ = 30624084. Its totient is φ = 25488120.

The previous prime is 28054493. The next prime is 28054501. The reversal of 28054499 is 99445082.

It is a de Polignac number, because none of the positive numbers 2^k-28054499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28054493) 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 5 ways as a sum of consecutive naturals, for example, 16769 + ... + 18365.

It is an arithmetic number, because the mean of its divisors is an integer number (5104014).

Almost surely, 2^28054499 is an apocalyptic number.

28054499 is a deficient number, since it is larger than the sum of its proper divisors (2569585).

28054499 is an frugal number, since it uses more digits than its factorization.

28054499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205 (or 1608 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 28054499 is about 5296.6497901976. The cubic root of 28054499 is about 303.8557826734.

The spelling of 28054499 in words is "twenty-eight million, fifty-four thousand, four hundred ninety-nine".