14989999 has 2 divisors, whose sum is σ = 14990000. Its totient is φ = 14989998.

The previous prime is 14989991. The next prime is 14990011. The reversal of 14989999 is 99998941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 14989999 - 2³ = 14989991 is a prime.

14989999 is a modest number, since divided by 9999 gives 1498 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14989991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7494999 + 7495000.

It is an arithmetic number, because the mean of its divisors is an integer number (7495000).

Almost surely, 2^14989999 is an apocalyptic number.

14989999 is a deficient number, since it is larger than the sum of its proper divisors (1).

14989999 is an equidigital number, since it uses as much as digits as its factorization.

14989999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1889568, while the sum is 58.

The square root of 14989999 is about 3871.6920073787. The cubic root of 14989999 is about 246.5663850540.

The spelling of 14989999 in words is "fourteen million, nine hundred eighty-nine thousand, nine hundred ninety-nine".