28093301 has 4 divisors (see below), whose sum is σ = 28512672. Its totient is φ = 27673932.

The previous prime is 28093291. The next prime is 28093309. The reversal of 28093301 is 10339082.

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 28093301 - 2¹⁰ = 28092277 is a prime.

It is a super-2 number, since 2×28093301² = 1578467122153202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28093309) 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, 209585 + ... + 209718.

It is an arithmetic number, because the mean of its divisors is an integer number (7128168).

Almost surely, 2^28093301 is an apocalyptic number.

It is an amenable number.

28093301 is a deficient number, since it is larger than the sum of its proper divisors (419371).

28093301 is an equidigital number, since it uses as much as digits as its factorization.

28093301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419370.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 28093301 is about 5300.3114059459. The cubic root of 28093301 is about 303.9958051418.

The spelling of 28093301 in words is "twenty-eight million, ninety-three thousand, three hundred one".