11877839 has 4 divisors (see below), whose sum is σ = 11986920. Its totient is φ = 11768760.

The previous prime is 11877829. The next prime is 11877841. The reversal of 11877839 is 93877811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93877811 = 2917 ⋅32183.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11877839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11877839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11877809) 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, 54377 + ... + 54594.

It is an arithmetic number, because the mean of its divisors is an integer number (2996730).

Almost surely, 2^11877839 is an apocalyptic number.

11877839 is a deficient number, since it is larger than the sum of its proper divisors (109081).

11877839 is a wasteful number, since it uses less digits than its factorization.

11877839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109080.

The product of its digits is 84672, while the sum is 44.

The square root of 11877839 is about 3446.4240888202. The cubic root of 11877839 is about 228.1633114864.

The spelling of 11877839 in words is "eleven million, eight hundred seventy-seven thousand, eight hundred thirty-nine".