28800353 has 4 divisors (see below), whose sum is σ = 28835520. Its totient is φ = 28765188.

The previous prime is 28800337. The next prime is 28800361. The reversal of 28800353 is 35300882.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35300882 = 2 ⋅17650441.

It is a cyclic number.

It is not a de Polignac number, because 28800353 - 2⁴ = 28800337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28800313) 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, 16325 + ... + 18002.

It is an arithmetic number, because the mean of its divisors is an integer number (7208880).

Almost surely, 2^28800353 is an apocalyptic number.

It is an amenable number.

28800353 is a deficient number, since it is larger than the sum of its proper divisors (35167).

28800353 is an equidigital number, since it uses as much as digits as its factorization.

28800353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35166.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 28800353 is about 5366.5960347319. The cubic root of 28800353 is about 306.5250253006.

The spelling of 28800353 in words is "twenty-eight million, eight hundred thousand, three hundred fifty-three".