28368573 has 4 divisors (see below), whose sum is σ = 37824768. Its totient is φ = 18912380.

The previous prime is 28368559. The next prime is 28368601. The reversal of 28368573 is 37586382.

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 28368573 - 2⁵ = 28368541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28368533) 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, 4728093 + ... + 4728098.

It is an arithmetic number, because the mean of its divisors is an integer number (9456192).

Almost surely, 2^28368573 is an apocalyptic number.

It is an amenable number.

28368573 is a deficient number, since it is larger than the sum of its proper divisors (9456195).

28368573 is an equidigital number, since it uses as much as digits as its factorization.

28368573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9456194.

The product of its digits is 241920, while the sum is 42.

The square root of 28368573 is about 5326.2156358901. The cubic root of 28368573 is about 304.9854799143.

The spelling of 28368573 in words is "twenty-eight million, three hundred sixty-eight thousand, five hundred seventy-three".