1879139 has 4 divisors (see below), whose sum is σ = 1883256. Its totient is φ = 1875024.

The previous prime is 1879121. The next prime is 1879151. The reversal of 1879139 is 9319781.

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

It is a cyclic number.

It is not a de Polignac number, because 1879139 - 2⁸ = 1878883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1879109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1274 + ... + 2319.

It is an arithmetic number, because the mean of its divisors is an integer number (470814).

2^1879139 is an apocalyptic number.

1879139 is a deficient number, since it is larger than the sum of its proper divisors (4117).

1879139 is an equidigital number, since it uses as much as digits as its factorization.

1879139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4116.

The product of its digits is 13608, while the sum is 38.

The square root of 1879139 is about 1370.8169097294. The cubic root of 1879139 is about 123.4012717161.

The spelling of 1879139 in words is "one million, eight hundred seventy-nine thousand, one hundred thirty-nine".