11879839 has 2 divisors, whose sum is σ = 11879840. Its totient is φ = 11879838.

The previous prime is 11879831. The next prime is 11879843. The reversal of 11879839 is 93897811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11879839 - 2³ = 11879831 is a prime.

It is a super-2 number, since 2×11879839² = 282261149331842, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11879831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5939919 + 5939920.

It is an arithmetic number, because the mean of its divisors is an integer number (5939920).

Almost surely, 2^11879839 is an apocalyptic number.

11879839 is a deficient number, since it is larger than the sum of its proper divisors (1).

11879839 is an equidigital number, since it uses as much as digits as its factorization.

11879839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 46.

The square root of 11879839 is about 3446.7142324248. The cubic root of 11879839 is about 228.1761168745.

It can be divided in two parts, 1187 and 9839, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 11879839 in words is "eleven million, eight hundred seventy-nine thousand, eight hundred thirty-nine".