16397629 has 2 divisors, whose sum is σ = 16397630. Its totient is φ = 16397628.

The previous prime is 16397611. The next prime is 16397651. The reversal of 16397629 is 92679361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16040025 + 357604 = 4005^2 + 598^2 .

It is a cyclic number.

It is not a de Polignac number, because 16397629 - 2²¹ = 14300477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16397669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8198814 + 8198815.

It is an arithmetic number, because the mean of its divisors is an integer number (8198815).

Almost surely, 2^16397629 is an apocalyptic number.

It is an amenable number.

16397629 is a deficient number, since it is larger than the sum of its proper divisors (1).

16397629 is an equidigital number, since it uses as much as digits as its factorization.

16397629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 43.

The square root of 16397629 is about 4049.3985973228. The cubic root of 16397629 is about 254.0545742159.

The spelling of 16397629 in words is "sixteen million, three hundred ninety-seven thousand, six hundred twenty-nine".