28760859 has 8 divisors (see below), whose sum is σ = 42608720. Its totient is φ = 19173888.

The previous prime is 28760857. The next prime is 28760867. The reversal of 28760859 is 95806782.

It is not a de Polignac number, because 28760859 - 2¹ = 28760857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28760857) 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, 532582 + ... + 532635.

It is an arithmetic number, because the mean of its divisors is an integer number (5326090).

Almost surely, 2^28760859 is an apocalyptic number.

28760859 is a deficient number, since it is larger than the sum of its proper divisors (13847861).

28760859 is a wasteful number, since it uses less digits than its factorization.

28760859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065226 (or 1065220 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 28760859 is about 5362.9151587546. The cubic root of 28760859 is about 306.3848483476.

The spelling of 28760859 in words is "twenty-eight million, seven hundred sixty thousand, eight hundred fifty-nine".