11995489 has 16 divisors (see below), whose sum is σ = 14463360. Its totient is φ = 9813760.

The previous prime is 11995469. The next prime is 11995499. The reversal of 11995489 is 98459911.

It is not a de Polignac number, because 11995489 - 2⁵ = 11995457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11995469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2907 + ... + 5695.

It is an arithmetic number, because the mean of its divisors is an integer number (903960).

Almost surely, 2^11995489 is an apocalyptic number.

It is an amenable number.

11995489 is a deficient number, since it is larger than the sum of its proper divisors (2467871).

11995489 is a wasteful number, since it uses less digits than its factorization.

11995489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840.

The product of its digits is 116640, while the sum is 46.

The square root of 11995489 is about 3463.4504471697. The cubic root of 11995489 is about 228.9141571044.

The spelling of 11995489 in words is "eleven million, nine hundred ninety-five thousand, four hundred eighty-nine".