28315895 has 16 divisors (see below), whose sum is σ = 34765632. Its totient is φ = 22133760.

The previous prime is 28315873. The next prime is 28315907. The reversal of 28315895 is 59851382.

It is not a de Polignac number, because 28315895 - 2¹⁴ = 28299511 is a prime.

It is a Duffinian number.

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, 80039 + ... + 80391.

It is an arithmetic number, because the mean of its divisors is an integer number (2172852).

Almost surely, 2^28315895 is an apocalyptic number.

28315895 is a deficient number, since it is larger than the sum of its proper divisors (6449737).

28315895 is a wasteful number, since it uses less digits than its factorization.

28315895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682.

The product of its digits is 86400, while the sum is 41.

The square root of 28315895 is about 5321.2681759145. The cubic root of 28315895 is about 304.7965856781.

The spelling of 28315895 in words is "twenty-eight million, three hundred fifteen thousand, eight hundred ninety-five".