11899389 has 16 divisors (see below), whose sum is σ = 16450560. Its totient is φ = 7645440.

The previous prime is 11899379. The next prime is 11899399. The reversal of 11899389 is 98399811.

It is an interprime number because it is at equal distance from previous prime (11899379) and next prime (11899399).

It is not a de Polignac number, because 11899389 - 2⁹ = 11898877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11899369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10404 + ... + 11490.

It is an arithmetic number, because the mean of its divisors is an integer number (1028160).

Almost surely, 2^11899389 is an apocalyptic number.

It is an amenable number.

11899389 is a deficient number, since it is larger than the sum of its proper divisors (4551171).

11899389 is a wasteful number, since it uses less digits than its factorization.

11899389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220.

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

The square root of 11899389 is about 3449.5491009696. The cubic root of 11899389 is about 228.3012139214.

The spelling of 11899389 in words is "eleven million, eight hundred ninety-nine thousand, three hundred eighty-nine".