13989333 has 4 divisors (see below), whose sum is σ = 18652448. Its totient is φ = 9326220.

The previous prime is 13989289. The next prime is 13989337. The reversal of 13989333 is 33398931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13989333 - 2¹⁴ = 13972949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13989291 and 13989300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13989337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2331553 + ... + 2331558.

It is an arithmetic number, because the mean of its divisors is an integer number (4663112).

Almost surely, 2^13989333 is an apocalyptic number.

It is an amenable number.

13989333 is a deficient number, since it is larger than the sum of its proper divisors (4663115).

13989333 is an equidigital number, since it uses as much as digits as its factorization.

13989333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4663114.

The product of its digits is 52488, while the sum is 39.

The square root of 13989333 is about 3740.2316773163. The cubic root of 13989333 is about 240.9529989895.

It can be divided in two parts, 1398 and 9333, that added together give a triangular number (10731 = T₁₄₆).

The spelling of 13989333 in words is "thirteen million, nine hundred eighty-nine thousand, three hundred thirty-three".