14909689 has 2 divisors, whose sum is σ = 14909690. Its totient is φ = 14909688.

The previous prime is 14909647. The next prime is 14909693. The reversal of 14909689 is 98690941.

14909689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11505664 + 3404025 = 3392^2 + 1845^2 .

It is a cyclic number.

It is not a de Polignac number, because 14909689 - 2²¹ = 12812537 is a prime.

It is not a weakly prime, because it can be changed into another prime (14909639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7454844 + 7454845.

It is an arithmetic number, because the mean of its divisors is an integer number (7454845).

Almost surely, 2^14909689 is an apocalyptic number.

It is an amenable number.

14909689 is a deficient number, since it is larger than the sum of its proper divisors (1).

14909689 is an equidigital number, since it uses as much as digits as its factorization.

14909689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 14909689 is about 3861.3066441297. The cubic root of 14909689 is about 246.1252639414.

The spelling of 14909689 in words is "fourteen million, nine hundred nine thousand, six hundred eighty-nine".