28054999 has 16 divisors (see below), whose sum is σ = 32947200. Its totient is φ = 23878680.

The previous prime is 28054993. The next prime is 28055003. The reversal of 28054999 is 99945082.

It is not a de Polignac number, because 28054999 - 2¹⁵ = 28022231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28054993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90054 + ... + 90364.

It is an arithmetic number, because the mean of its divisors is an integer number (2059200).

Almost surely, 2^28054999 is an apocalyptic number.

28054999 is a deficient number, since it is larger than the sum of its proper divisors (4892201).

28054999 is an equidigital number, since it uses as much as digits as its factorization.

28054999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 28054999 is about 5296.6969896342. The cubic root of 28054999 is about 303.8575878145.

The spelling of 28054999 in words is "twenty-eight million, fifty-four thousand, nine hundred ninety-nine".