11435989 has 8 divisors (see below), whose sum is σ = 11646432. Its totient is φ = 11227440.

The previous prime is 11435981. The next prime is 11436001. The reversal of 11435989 is 98953411.

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

It is a cyclic number.

It is not a de Polignac number, because 11435989 - 2³ = 11435981 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 (11435981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17187 + ... + 17839.

It is an arithmetic number, because the mean of its divisors is an integer number (1455804).

Almost surely, 2^11435989 is an apocalyptic number.

It is an amenable number.

11435989 is a deficient number, since it is larger than the sum of its proper divisors (210443).

11435989 is an equidigital number, since it uses as much as digits as its factorization.

11435989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947.

The product of its digits is 38880, while the sum is 40.

The square root of 11435989 is about 3381.7139145705. The cubic root of 11435989 is about 225.2982973568.

The spelling of 11435989 in words is "eleven million, four hundred thirty-five thousand, nine hundred eighty-nine".