16929439 has 2 divisors, whose sum is σ = 16929440. Its totient is φ = 16929438.

The previous prime is 16929421. The next prime is 16929443. The reversal of 16929439 is 93492961.

It is a strong prime.

It is an emirp because it is prime and its reverse (93492961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16929439 - 2⁹ = 16928927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16929395 and 16929404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16929139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8464719 + 8464720.

It is an arithmetic number, because the mean of its divisors is an integer number (8464720).

Almost surely, 2^16929439 is an apocalyptic number.

16929439 is a deficient number, since it is larger than the sum of its proper divisors (1).

16929439 is an equidigital number, since it uses as much as digits as its factorization.

16929439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 43.

The square root of 16929439 is about 4114.5399499823. The cubic root of 16929439 is about 256.7719163186.

The spelling of 16929439 in words is "sixteen million, nine hundred twenty-nine thousand, four hundred thirty-nine".