11522889 has 72 divisors (see below), whose sum is σ = 21607560. Its totient is φ = 5870592.

The previous prime is 11522887. The next prime is 11522897. The reversal of 11522889 is 98822511.

It can be written as a sum of positive squares in 4 ways, for example, as 4410000 + 7112889 = 2100^2 + 2667^2 .

It is not a de Polignac number, because 11522889 - 2¹ = 11522887 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11522881) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 217387 + ... + 217439.

It is an arithmetic number, because the mean of its divisors is an integer number (300105).

Almost surely, 2^11522889 is an apocalyptic number.

It is an amenable number.

11522889 is a deficient number, since it is larger than the sum of its proper divisors (10084671).

11522889 is a wasteful number, since it uses less digits than its factorization.

11522889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 109 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 11522889 is about 3394.5381129102. The cubic root of 11522889 is about 225.8675248888.

The spelling of 11522889 in words is "eleven million, five hundred twenty-two thousand, eight hundred eighty-nine".