11989570 has 16 divisors (see below), whose sum is σ = 22717440. Its totient is φ = 4543344.

The previous prime is 11989553. The next prime is 11989597. The reversal of 11989570 is 7598911.

It is a happy number.

11989570 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31362 + ... + 31741.

It is an arithmetic number, because the mean of its divisors is an integer number (1419840).

Almost surely, 2^11989570 is an apocalyptic number.

11989570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11989570 is a deficient number, since it is larger than the sum of its proper divisors (10727870).

11989570 is a wasteful number, since it uses less digits than its factorization.

11989570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63129.

The product of its (nonzero) digits is 22680, while the sum is 40.

The square root of 11989570 is about 3462.5958470489. The cubic root of 11989570 is about 228.8764994533.

The spelling of 11989570 in words is "eleven million, nine hundred eighty-nine thousand, five hundred seventy".