28054899 has 6 divisors (see below), whose sum is σ = 40523756. Its totient is φ = 18703260.

The previous prime is 28054889. The next prime is 28054903. The reversal of 28054899 is 99845082.

It is not a de Polignac number, because 28054899 - 2⁹ = 28054387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28054889) 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, 1558597 + ... + 1558614.

Almost surely, 2^28054899 is an apocalyptic number.

28054899 is a deficient number, since it is larger than the sum of its proper divisors (12468857).

28054899 is a wasteful number, since it uses less digits than its factorization.

28054899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117217 (or 3117214 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 28054899 is about 5296.6875497805. The cubic root of 28054899 is about 303.8572267880.

The spelling of 28054899 in words is "twenty-eight million, fifty-four thousand, eight hundred ninety-nine".