11836919 has 2 divisors, whose sum is σ = 11836920. Its totient is φ = 11836918.

The previous prime is 11836859. The next prime is 11836961. The reversal of 11836919 is 91963811.

It is a strong prime.

It is an emirp because it is prime and its reverse (91963811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11836919 - 2¹² = 11832823 is a prime.

It is a super-2 number, since 2×11836919² = 280225302825122, 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 (11836969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5918459 + 5918460.

It is an arithmetic number, because the mean of its divisors is an integer number (5918460).

Almost surely, 2^11836919 is an apocalyptic number.

11836919 is a deficient number, since it is larger than the sum of its proper divisors (1).

11836919 is an equidigital number, since it uses as much as digits as its factorization.

11836919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 38.

The square root of 11836919 is about 3440.4823789696. The cubic root of 11836919 is about 227.9009970805.

The spelling of 11836919 in words is "eleven million, eight hundred thirty-six thousand, nine hundred nineteen".