11418391 has 2 divisors, whose sum is σ = 11418392. Its totient is φ = 11418390.

The previous prime is 11418383. The next prime is 11418401. The reversal of 11418391 is 19381411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11418391 - 2³ = 11418383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11418301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5709195 + 5709196.

It is an arithmetic number, because the mean of its divisors is an integer number (5709196).

Almost surely, 2^11418391 is an apocalyptic number.

11418391 is a deficient number, since it is larger than the sum of its proper divisors (1).

11418391 is an equidigital number, since it uses as much as digits as its factorization.

11418391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 28.

The square root of 11418391 is about 3379.1109777573. The cubic root of 11418391 is about 225.1826730504.

The spelling of 11418391 in words is "eleven million, four hundred eighteen thousand, three hundred ninety-one".