28112941 has 4 divisors (see below), whose sum is σ = 28239232. Its totient is φ = 27986652.

The previous prime is 28112879. The next prime is 28113011. The reversal of 28112941 is 14921182.

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 28112941 - 2⁷ = 28112813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28112741) 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, 62811 + ... + 63256.

It is an arithmetic number, because the mean of its divisors is an integer number (7059808).

Almost surely, 2^28112941 is an apocalyptic number.

It is an amenable number.

28112941 is a deficient number, since it is larger than the sum of its proper divisors (126291).

28112941 is a wasteful number, since it uses less digits than its factorization.

28112941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126290.

The product of its digits is 1152, while the sum is 28.

The square root of 28112941 is about 5302.1638035806. The cubic root of 28112941 is about 304.0666296993.

The spelling of 28112941 in words is "twenty-eight million, one hundred twelve thousand, nine hundred forty-one".