28183413 has 4 divisors (see below), whose sum is σ = 37577888. Its totient is φ = 18788940.

The previous prime is 28183369. The next prime is 28183417. The reversal of 28183413 is 31438182.

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 not a de Polignac number, because 28183413 - 2¹² = 28179317 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 (28183417) 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, 4697233 + ... + 4697238.

It is an arithmetic number, because the mean of its divisors is an integer number (9394472).

Almost surely, 2^28183413 is an apocalyptic number.

It is an amenable number.

28183413 is a deficient number, since it is larger than the sum of its proper divisors (9394475).

28183413 is an equidigital number, since it uses as much as digits as its factorization.

28183413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9394474.

The product of its digits is 4608, while the sum is 30.

The square root of 28183413 is about 5308.8052328184. The cubic root of 28183413 is about 304.3204902899.

The spelling of 28183413 in words is "twenty-eight million, one hundred eighty-three thousand, four hundred thirteen".