15794985 has 32 divisors (see below), whose sum is σ = 26847360. Its totient is φ = 7907328.

The previous prime is 15794981. The next prime is 15794993. The reversal of 15794985 is 58949751.

It is not a de Polignac number, because 15794985 - 2² = 15794981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15794981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44569 + ... + 44921.

It is an arithmetic number, because the mean of its divisors is an integer number (838980).

Almost surely, 2^15794985 is an apocalyptic number.

15794985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15794985 is a deficient number, since it is larger than the sum of its proper divisors (11052375).

15794985 is a wasteful number, since it uses less digits than its factorization.

15794985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537.

The product of its digits is 453600, while the sum is 48.

The square root of 15794985 is about 3974.2905027187. The cubic root of 15794985 is about 250.9033187961.

The spelling of 15794985 in words is "fifteen million, seven hundred ninety-four thousand, nine hundred eighty-five".