14989989 has 16 divisors (see below), whose sum is σ = 22896128. Its totient is φ = 8545392.

The previous prime is 14989981. The next prime is 14989991. The reversal of 14989989 is 98998941.

It is a happy number.

It is not a de Polignac number, because 14989989 - 2³ = 14989981 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 (14989981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16074 + ... + 16980.

It is an arithmetic number, because the mean of its divisors is an integer number (1431008).

Almost surely, 2^14989989 is an apocalyptic number.

It is an amenable number.

14989989 is a deficient number, since it is larger than the sum of its proper divisors (7906139).

14989989 is an equidigital number, since it uses as much as digits as its factorization.

14989989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704.

The product of its digits is 1679616, while the sum is 57.

The square root of 14989989 is about 3871.6907159534. The cubic root of 14989989 is about 246.5663302249.

The spelling of 14989989 in words is "fourteen million, nine hundred eighty-nine thousand, nine hundred eighty-nine".