28393119 has 16 divisors (see below), whose sum is σ = 42150400. Its totient is φ = 18889848.

The previous prime is 28393091. The next prime is 28393139. The reversal of 28393119 is 91139382.

It is not a de Polignac number, because 28393119 - 2⁸ = 28392863 is a prime.

It is a super-2 number, since 2×28393119² = 1612338413096322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28393139) 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, 19242 + ... + 20664.

It is an arithmetic number, because the mean of its divisors is an integer number (2634400).

Almost surely, 2^28393119 is an apocalyptic number.

28393119 is a deficient number, since it is larger than the sum of its proper divisors (13757281).

28393119 is a wasteful number, since it uses less digits than its factorization.

28393119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171 (or 2165 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 28393119 is about 5328.5194003588. The cubic root of 28393119 is about 305.0734177823.

The spelling of 28393119 in words is "twenty-eight million, three hundred ninety-three thousand, one hundred nineteen".