28094913 has 48 divisors (see below), whose sum is σ = 51397632. Its totient is φ = 14364000.

The previous prime is 28094893. The next prime is 28094921. The reversal of 28094913 is 31949082.

It is not a de Polignac number, because 28094913 - 2⁸ = 28094657 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28094933) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48918 + ... + 49488.

It is an arithmetic number, because the mean of its divisors is an integer number (1070784).

Almost surely, 2^28094913 is an apocalyptic number.

It is an amenable number.

28094913 is a deficient number, since it is larger than the sum of its proper divisors (23302719).

28094913 is a wasteful number, since it uses less digits than its factorization.

28094913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 28094913 is about 5300.4634703014. The cubic root of 28094913 is about 304.0016194801.

The spelling of 28094913 in words is "twenty-eight million, ninety-four thousand, nine hundred thirteen".