16949929 has 2 divisors, whose sum is σ = 16949930. Its totient is φ = 16949928.

The previous prime is 16949927. The next prime is 16949951. The reversal of 16949929 is 92994961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14137600 + 2812329 = 3760^2 + 1677^2 .

It is a cyclic number.

It is not a de Polignac number, because 16949929 - 2¹ = 16949927 is a prime.

Together with 16949927, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16949923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8474964 + 8474965.

It is an arithmetic number, because the mean of its divisors is an integer number (8474965).

Almost surely, 2^16949929 is an apocalyptic number.

It is an amenable number.

16949929 is a deficient number, since it is larger than the sum of its proper divisors (1).

16949929 is an equidigital number, since it uses as much as digits as its factorization.

16949929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 314928, while the sum is 49.

The square root of 16949929 is about 4117.0291473343. The cubic root of 16949929 is about 256.8754664203.

The spelling of 16949929 in words is "sixteen million, nine hundred forty-nine thousand, nine hundred twenty-nine".