28314315 has 24 divisors (see below), whose sum is σ = 50663808. Its totient is φ = 14613120.

The previous prime is 28314289. The next prime is 28314323. The reversal of 28314315 is 51341382.

It is a happy number.

It is not a de Polignac number, because 28314315 - 2⁵ = 28314283 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8754 + ... + 11543.

It is an arithmetic number, because the mean of its divisors is an integer number (2110992).

Almost surely, 2^28314315 is an apocalyptic number.

28314315 is a deficient number, since it is larger than the sum of its proper divisors (22349493).

28314315 is a wasteful number, since it uses less digits than its factorization.

28314315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20339 (or 20336 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 28314315 is about 5321.1197129927. The cubic root of 28314315 is about 304.7909164528.

Adding to 28314315 its reverse (51341382), we get a palindrome (79655697).

The spelling of 28314315 in words is "twenty-eight million, three hundred fourteen thousand, three hundred fifteen".