28094613 has 4 divisors (see below), whose sum is σ = 37459488. Its totient is φ = 18729740.

The previous prime is 28094603. The next prime is 28094657. The reversal of 28094613 is 31649082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28094613 - 2⁸ = 28094357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28094603) 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, 4682433 + ... + 4682438.

It is an arithmetic number, because the mean of its divisors is an integer number (9364872).

Almost surely, 2^28094613 is an apocalyptic number.

It is an amenable number.

28094613 is a deficient number, since it is larger than the sum of its proper divisors (9364875).

28094613 is an equidigital number, since it uses as much as digits as its factorization.

28094613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9364874.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 28094613 is about 5300.4351708138. The cubic root of 28094613 is about 304.0005374240. Note that the first 3 decimals are identical.

The spelling of 28094613 in words is "twenty-eight million, ninety-four thousand, six hundred thirteen".