11989358 has 4 divisors (see below), whose sum is σ = 17984040. Its totient is φ = 5994678.

The previous prime is 11989357. The next prime is 11989379. The reversal of 11989358 is 85398911.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11989357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2997338 + ... + 2997341.

It is an arithmetic number, because the mean of its divisors is an integer number (4496010).

Almost surely, 2^11989358 is an apocalyptic number.

11989358 is a deficient number, since it is larger than the sum of its proper divisors (5994682).

11989358 is an equidigital number, since it uses as much as digits as its factorization.

11989358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5994681.

The product of its digits is 77760, while the sum is 44.

The square root of 11989358 is about 3462.5652340425. The cubic root of 11989358 is about 228.8751504446.

The spelling of 11989358 in words is "eleven million, nine hundred eighty-nine thousand, three hundred fifty-eight".