14669639 has 2 divisors, whose sum is σ = 14669640. Its totient is φ = 14669638.

The previous prime is 14669617. The next prime is 14669647. The reversal of 14669639 is 93696641.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 14669639 - 2⁸ = 14669383 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14669639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14669659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7334819 + 7334820.

It is an arithmetic number, because the mean of its divisors is an integer number (7334820).

Almost surely, 2^14669639 is an apocalyptic number.

14669639 is a deficient number, since it is larger than the sum of its proper divisors (1).

14669639 is an equidigital number, since it uses as much as digits as its factorization.

14669639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 44.

The square root of 14669639 is about 3830.0964739808. The cubic root of 14669639 is about 244.7972166283.

The spelling of 14669639 in words is "fourteen million, six hundred sixty-nine thousand, six hundred thirty-nine".