11839291 has 2 divisors, whose sum is σ = 11839292. Its totient is φ = 11839290.

The previous prime is 11839277. The next prime is 11839301. The reversal of 11839291 is 19293811.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11839291 is a prime.

It is a super-2 number, since 2×11839291² = 280337622765362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11839231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5919645 + 5919646.

It is an arithmetic number, because the mean of its divisors is an integer number (5919646).

Almost surely, 2^11839291 is an apocalyptic number.

11839291 is a deficient number, since it is larger than the sum of its proper divisors (1).

11839291 is an equidigital number, since it uses as much as digits as its factorization.

11839291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 34.

The square root of 11839291 is about 3440.8270808048. The cubic root of 11839291 is about 227.9162190894.

The spelling of 11839291 in words is "eleven million, eight hundred thirty-nine thousand, two hundred ninety-one".