104879189 has 4 divisors (see below), whose sum is σ = 107437260. Its totient is φ = 102321120.

The previous prime is 104879179. The next prime is 104879197. The reversal of 104879189 is 981978401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52678564 + 52200625 = 7258^2 + 7225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104879189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104879119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1278974 + ... + 1279055.

It is an arithmetic number, because the mean of its divisors is an integer number (26859315).

Almost surely, 2^104879189 is an apocalyptic number.

It is an amenable number.

104879189 is a deficient number, since it is larger than the sum of its proper divisors (2558071).

104879189 is an equidigital number, since it uses as much as digits as its factorization.

104879189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2558070.

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 104879189 is about 10241.0540961368. The cubic root of 104879189 is about 471.5883922989.

The spelling of 104879189 in words is "one hundred four million, eight hundred seventy-nine thousand, one hundred eighty-nine".