28313104 has 20 divisors (see below), whose sum is σ = 55224640. Its totient is φ = 14061600.

The previous prime is 28313099. The next prime is 28313111. The reversal of 28313104 is 40131382.

It is a super-2 number, since 2×28313104² = 1603263716229632, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3444 + ... + 8275.

It is an arithmetic number, because the mean of its divisors is an integer number (2761232).

Almost surely, 2^28313104 is an apocalyptic number.

It is an amenable number.

28313104 is a deficient number, since it is larger than the sum of its proper divisors (26911536).

28313104 is a wasteful number, since it uses less digits than its factorization.

28313104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11878 (or 11872 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 28313104 is about 5321.0059199366. The cubic root of 28313104 is about 304.7865711000.

Adding to 28313104 its reverse (40131382), we get a palindrome (68444486).

The spelling of 28313104 in words is "twenty-eight million, three hundred thirteen thousand, one hundred four".