16499629 has 2 divisors, whose sum is σ = 16499630. Its totient is φ = 16499628.

The previous prime is 16499627. The next prime is 16499641. The reversal of 16499629 is 92699461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15444900 + 1054729 = 3930^2 + 1027^2 .

It is a cyclic number.

It is not a de Polignac number, because 16499629 - 2¹ = 16499627 is a prime.

Together with 16499627, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16499627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8249814 + 8249815.

It is an arithmetic number, because the mean of its divisors is an integer number (8249815).

Almost surely, 2^16499629 is an apocalyptic number.

It is an amenable number.

16499629 is a deficient number, since it is larger than the sum of its proper divisors (1).

16499629 is an equidigital number, since it uses as much as digits as its factorization.

16499629 is an evil number, because the sum of its binary digits is even.

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

The square root of 16499629 is about 4061.9735351181. The cubic root of 16499629 is about 254.5802603882.

It can be divided in two parts, 164996 and 29, that added together give a triangular number (165025 = T₅₇₄).

The spelling of 16499629 in words is "sixteen million, four hundred ninety-nine thousand, six hundred twenty-nine".