11939589 has 8 divisors (see below), whose sum is σ = 17688320. Its totient is φ = 7959708.

The previous prime is 11939563. The next prime is 11939621. The reversal of 11939589 is 98593911.

11939589 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11939589 - 2¹³ = 11931397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11939089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221077 + ... + 221130.

It is an arithmetic number, because the mean of its divisors is an integer number (2211040).

Almost surely, 2^11939589 is an apocalyptic number.

It is an amenable number.

11939589 is a deficient number, since it is larger than the sum of its proper divisors (5748731).

11939589 is an equidigital number, since it uses as much as digits as its factorization.

11939589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442216 (or 442210 counting only the distinct ones).

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

The square root of 11939589 is about 3455.3710365169. The cubic root of 11939589 is about 228.5580168284.

The spelling of 11939589 in words is "eleven million, nine hundred thirty-nine thousand, five hundred eighty-nine".