1938879 has 12 divisors (see below), whose sum is σ = 2816632. Its totient is φ = 1285200.

The previous prime is 1938863. The next prime is 1938883. The reversal of 1938879 is 9788391.

It is not a de Polignac number, because 1938879 - 2⁴ = 1938863 is a prime.

It is a Duffinian number.

1938879 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1938809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1389 + ... + 2409.

2^1938879 is an apocalyptic number.

1938879 is a deficient number, since it is larger than the sum of its proper divisors (877753).

1938879 is a wasteful number, since it uses less digits than its factorization.

1938879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238 (or 1235 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 1938879 is about 1392.4363540213. The cubic root of 1938879 is about 124.6953434115.

The spelling of 1938879 in words is "one million, nine hundred thirty-eight thousand, eight hundred seventy-nine".