28485015 has 16 divisors (see below), whose sum is σ = 49082208. Its totient is φ = 14023296.

The previous prime is 28485007. The next prime is 28485029. The reversal of 28485015 is 51058482.

It is not a de Polignac number, because 28485015 - 2³ = 28485007 is a prime.

It is a super-2 number, since 2×28485015² = 1622792159100450, which contains 22 as substring.

It is a congruent number.

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, 72844 + ... + 73233.

It is an arithmetic number, because the mean of its divisors is an integer number (3067638).

Almost surely, 2^28485015 is an apocalyptic number.

28485015 is a deficient number, since it is larger than the sum of its proper divisors (20597193).

28485015 is a wasteful number, since it uses less digits than its factorization.

28485015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146098.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 28485015 is about 5337.1354676455. The cubic root of 28485015 is about 305.4021926919.

The spelling of 28485015 in words is "twenty-eight million, four hundred eighty-five thousand, fifteen".