11389899 has 12 divisors (see below), whose sum is σ = 15877736. Its totient is φ = 7262112.

The previous prime is 11389897. The next prime is 11389907. The reversal of 11389899 is 99898311.

It is not a de Polignac number, because 11389899 - 2¹ = 11389897 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (11389897) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2002 + ... + 5175.

Almost surely, 2^11389899 is an apocalyptic number.

11389899 is a deficient number, since it is larger than the sum of its proper divisors (4487837).

11389899 is an equidigital number, since it uses as much as digits as its factorization.

11389899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7226 (or 7203 counting only the distinct ones).

The product of its digits is 139968, while the sum is 48.

The square root of 11389899 is about 3374.8924427306. The cubic root of 11389899 is about 224.9952196515.

The spelling of 11389899 in words is "eleven million, three hundred eighty-nine thousand, eight hundred ninety-nine".