28054724 has 12 divisors (see below), whose sum is σ = 49132944. Its totient is φ = 14016744.

The previous prime is 28054699. The next prime is 28054729. The reversal of 28054724 is 42745082.

It is not an unprimeable number, because it can be changed into a prime (28054729) 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, 8447 + ... + 11289.

It is an arithmetic number, because the mean of its divisors is an integer number (4094412).

Almost surely, 2^28054724 is an apocalyptic number.

It is an amenable number.

28054724 is a deficient number, since it is larger than the sum of its proper divisors (21078220).

28054724 is a wasteful number, since it uses less digits than its factorization.

28054724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5314 (or 5312 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 28054724 is about 5296.6710299961. The cubic root of 28054724 is about 303.8565949896.

The spelling of 28054724 in words is "twenty-eight million, fifty-four thousand, seven hundred twenty-four".