28344373 has 4 divisors (see below), whose sum is σ = 28369440. Its totient is φ = 28319308.

The previous prime is 28344359. The next prime is 28344383. The reversal of 28344373 is 37344382.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-28344373 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 (28344313) 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, 10753 + ... + 13126.

It is an arithmetic number, because the mean of its divisors is an integer number (7092360).

Almost surely, 2^28344373 is an apocalyptic number.

It is an amenable number.

28344373 is a deficient number, since it is larger than the sum of its proper divisors (25067).

28344373 is a wasteful number, since it uses less digits than its factorization.

28344373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25066.

The product of its digits is 48384, while the sum is 34.

The square root of 28344373 is about 5323.9433693457. The cubic root of 28344373 is about 304.8987319449.

Subtracting 28344373 from its reverse (37344382), we obtain a palindrome (9000009).

The spelling of 28344373 in words is "twenty-eight million, three hundred forty-four thousand, three hundred seventy-three".