11389867 has 2 divisors, whose sum is σ = 11389868. Its totient is φ = 11389866.

The previous prime is 11389849. The next prime is 11389877. The reversal of 11389867 is 76898311.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11389867 is a prime.

It is a nialpdrome in base 15.

It is not a weakly prime, because it can be changed into another prime (11389877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5694933 + 5694934.

It is an arithmetic number, because the mean of its divisors is an integer number (5694934).

Almost surely, 2^11389867 is an apocalyptic number.

11389867 is a deficient number, since it is larger than the sum of its proper divisors (1).

11389867 is an equidigital number, since it uses as much as digits as its factorization.

11389867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 43.

The square root of 11389867 is about 3374.8877018354. The cubic root of 11389867 is about 224.9950089428.

The spelling of 11389867 in words is "eleven million, three hundred eighty-nine thousand, eight hundred sixty-seven".