11989522 has 8 divisors (see below), whose sum is σ = 19042236. Its totient is φ = 5642112.

The previous prime is 11989519. The next prime is 11989531. The reversal of 11989522 is 22598911.

11989522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10169721 + 1819801 = 3189^2 + 1349^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176283 + ... + 176350.

Almost surely, 2^11989522 is an apocalyptic number.

11989522 is a deficient number, since it is larger than the sum of its proper divisors (7052714).

11989522 is a wasteful number, since it uses less digits than its factorization.

11989522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352652.

The product of its digits is 12960, while the sum is 37.

The square root of 11989522 is about 3462.5889158258. The cubic root of 11989522 is about 228.8761940188.

The spelling of 11989522 in words is "eleven million, nine hundred eighty-nine thousand, five hundred twenty-two".