104879985 has 16 divisors (see below), whose sum is σ = 191780736. Its totient is φ = 47945088.

The previous prime is 104879947. The next prime is 104880001. The reversal of 104879985 is 589978401.

It is not a de Polignac number, because 104879985 - 2⁸ = 104879729 is a prime.

It is a super-2 number, since 2×104879985² = 21999622507200450, which contains 22 as substring.

It is a Curzon 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, 499324 + ... + 499533.

It is an arithmetic number, because the mean of its divisors is an integer number (11986296).

Almost surely, 2^104879985 is an apocalyptic number.

104879985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104879985 is a deficient number, since it is larger than the sum of its proper divisors (86900751).

104879985 is an equidigital number, since it uses as much as digits as its factorization.

104879985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998872.

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 104879985 is about 10241.0929592500. The cubic root of 104879985 is about 471.5895853650.

The spelling of 104879985 in words is "one hundred four million, eight hundred seventy-nine thousand, nine hundred eighty-five".