11989593 has 64 divisors (see below), whose sum is σ = 22732800. Its totient is φ = 6065280.

The previous prime is 11989553. The next prime is 11989597. The reversal of 11989593 is 39598911.

It is not a de Polignac number, because 11989593 - 2¹⁰ = 11988569 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11989597) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 151728 + ... + 151806.

It is an arithmetic number, because the mean of its divisors is an integer number (355200).

Almost surely, 2^11989593 is an apocalyptic number.

It is an amenable number.

11989593 is a deficient number, since it is larger than the sum of its proper divisors (10743207).

11989593 is a wasteful number, since it uses less digits than its factorization.

11989593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 173 counting only the distinct ones).

The product of its digits is 87480, while the sum is 45.

The square root of 11989593 is about 3462.5991682550. The cubic root of 11989593 is about 228.8766458071.

The spelling of 11989593 in words is "eleven million, nine hundred eighty-nine thousand, five hundred ninety-three".