28813373 has 4 divisors (see below), whose sum is σ = 28882560. Its totient is φ = 28744188.

The previous prime is 28813361. The next prime is 28813391. The reversal of 28813373 is 37331882.

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 28813373 - 2¹⁰ = 28812349 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 (28813313) 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, 33965 + ... + 34802.

It is an arithmetic number, because the mean of its divisors is an integer number (7220640).

Almost surely, 2^28813373 is an apocalyptic number.

It is an amenable number.

28813373 is a deficient number, since it is larger than the sum of its proper divisors (69187).

28813373 is an equidigital number, since it uses as much as digits as its factorization.

28813373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69186.

The product of its digits is 24192, while the sum is 35.

The square root of 28813373 is about 5367.8089571072. The cubic root of 28813373 is about 306.5712093939.

The spelling of 28813373 in words is "twenty-eight million, eight hundred thirteen thousand, three hundred seventy-three".