1941879 has 4 divisors (see below), whose sum is σ = 2589176. Its totient is φ = 1294584.

The previous prime is 1941851. The next prime is 1941881. The reversal of 1941879 is 9781491.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9781491 = 3 ⋅3260497.

It is not a de Polignac number, because 1941879 - 2⁹ = 1941367 is a prime.

It is a D-number.

It is a Duffinian number.

1941879 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1941839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323644 + ... + 323649.

It is an arithmetic number, because the mean of its divisors is an integer number (647294).

2^1941879 is an apocalyptic number.

1941879 is a deficient number, since it is larger than the sum of its proper divisors (647297).

1941879 is an equidigital number, since it uses as much as digits as its factorization.

1941879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647296.

The product of its digits is 18144, while the sum is 39.

The square root of 1941879 is about 1393.5131861594. The cubic root of 1941879 is about 124.7596233823.

The spelling of 1941879 in words is "one million, nine hundred forty-one thousand, eight hundred seventy-nine".