14788989 has 6 divisors (see below), whose sum is σ = 21361886. Its totient is φ = 9859320.

The previous prime is 14788979. The next prime is 14788993. The reversal of 14788989 is 98988741.

It can be written as a sum of positive squares in only one way, i.e., 13616100 + 1172889 = 3690^2 + 1083^2 .

It is not a de Polignac number, because 14788989 - 2⁸ = 14788733 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14788909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 821602 + ... + 821619.

Almost surely, 2^14788989 is an apocalyptic number.

It is an amenable number.

14788989 is a deficient number, since it is larger than the sum of its proper divisors (6572897).

14788989 is a wasteful number, since it uses less digits than its factorization.

14788989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643227 (or 1643224 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 54.

The square root of 14788989 is about 3845.6454594775. The cubic root of 14788989 is about 245.4593022273.

The spelling of 14788989 in words is "fourteen million, seven hundred eighty-eight thousand, nine hundred eighty-nine".