11644091 has 2 divisors, whose sum is σ = 11644092. Its totient is φ = 11644090.

The previous prime is 11644069. The next prime is 11644097. The reversal of 11644091 is 19044611.

It is a strong prime.

It is an emirp because it is prime and its reverse (19044611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11644091 - 2²² = 7449787 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11644091.

It is not a weakly prime, because it can be changed into another prime (11644097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5822045 + 5822046.

It is an arithmetic number, because the mean of its divisors is an integer number (5822046).

Almost surely, 2^11644091 is an apocalyptic number.

11644091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11644091 is an equidigital number, since it uses as much as digits as its factorization.

11644091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 11644091 is about 3412.3439158444. The cubic root of 11644091 is about 226.6566837683.

The spelling of 11644091 in words is "eleven million, six hundred forty-four thousand, ninety-one".