16969429 has 2 divisors, whose sum is σ = 16969430. Its totient is φ = 16969428.

The previous prime is 16969411. The next prime is 16969481. The reversal of 16969429 is 92496961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13675204 + 3294225 = 3698^2 + 1815^2 .

It is a cyclic number.

It is not a de Polignac number, because 16969429 - 2⁷ = 16969301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16969409) 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 as a sum of consecutive naturals, namely, 8484714 + 8484715.

It is an arithmetic number, because the mean of its divisors is an integer number (8484715).

Almost surely, 2^16969429 is an apocalyptic number.

It is an amenable number.

16969429 is a deficient number, since it is larger than the sum of its proper divisors (1).

16969429 is an equidigital number, since it uses as much as digits as its factorization.

16969429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 46.

The square root of 16969429 is about 4119.3966791267. The cubic root of 16969429 is about 256.9739358973.

The spelling of 16969429 in words is "sixteen million, nine hundred sixty-nine thousand, four hundred twenty-nine".