11397391 has 2 divisors, whose sum is σ = 11397392. Its totient is φ = 11397390.

The previous prime is 11397383. The next prime is 11397427. The reversal of 11397391 is 19379311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11397391 - 2³ = 11397383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11397371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5698695 + 5698696.

It is an arithmetic number, because the mean of its divisors is an integer number (5698696).

Almost surely, 2^11397391 is an apocalyptic number.

11397391 is a deficient number, since it is larger than the sum of its proper divisors (1).

11397391 is an equidigital number, since it uses as much as digits as its factorization.

11397391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5103, while the sum is 34.

The square root of 11397391 is about 3376.0022215633. The cubic root of 11397391 is about 225.0445409763.

The spelling of 11397391 in words is "eleven million, three hundred ninety-seven thousand, three hundred ninety-one".