28818465 has 16 divisors (see below), whose sum is σ = 49656768. Its totient is φ = 14187456.

The previous prime is 28818457. The next prime is 28818481. The reversal of 28818465 is 56481882.

It is not a de Polignac number, because 28818465 - 2³ = 28818457 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73699 + ... + 74088.

It is an arithmetic number, because the mean of its divisors is an integer number (3103548).

Almost surely, 2^28818465 is an apocalyptic number.

It is an amenable number.

28818465 is a deficient number, since it is larger than the sum of its proper divisors (20838303).

28818465 is a wasteful number, since it uses less digits than its factorization.

28818465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147808.

The product of its digits is 122880, while the sum is 42.

The square root of 28818465 is about 5368.2832451353. The cubic root of 28818465 is about 306.5892677755.

The spelling of 28818465 in words is "twenty-eight million, eight hundred eighteen thousand, four hundred sixty-five".