28296313 has 8 divisors (see below), whose sum is σ = 30143232. Its totient is φ = 26469696.

The previous prime is 28296293. The next prime is 28296337. The reversal of 28296313 is 31369282.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28296313 - 2¹³ = 28288121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28296353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2145 + ... + 7822.

It is an arithmetic number, because the mean of its divisors is an integer number (3767904).

Almost surely, 2^28296313 is an apocalyptic number.

It is an amenable number.

28296313 is a deficient number, since it is larger than the sum of its proper divisors (1846919).

28296313 is a wasteful number, since it uses less digits than its factorization.

28296313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10151.

The product of its digits is 15552, while the sum is 34.

The square root of 28296313 is about 5319.4278827709. The cubic root of 28296313 is about 304.7263082700.

The spelling of 28296313 in words is "twenty-eight million, two hundred ninety-six thousand, three hundred thirteen".