11955489 has 16 divisors (see below), whose sum is σ = 19619712. Its totient is φ = 6306048.

The previous prime is 11955467. The next prime is 11955499. The reversal of 11955489 is 98455911.

11955489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11955489 - 2⁹ = 11954977 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11955489.

It is not an unprimeable number, because it can be changed into a prime (11955439) 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, 21624 + ... + 22169.

It is an arithmetic number, because the mean of its divisors is an integer number (1226232).

Almost surely, 2^11955489 is an apocalyptic number.

It is an amenable number.

11955489 is a deficient number, since it is larger than the sum of its proper divisors (7664223).

11955489 is a wasteful number, since it uses less digits than its factorization.

11955489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43816.

The product of its digits is 64800, while the sum is 42.

The square root of 11955489 is about 3457.6710369843. The cubic root of 11955489 is about 228.6594290431.

The spelling of 11955489 in words is "eleven million, nine hundred fifty-five thousand, four hundred eighty-nine".