16006729 has 2 divisors, whose sum is σ = 16006730. Its totient is φ = 16006728.

The previous prime is 16006723. The next prime is 16006787. The reversal of 16006729 is 92760061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14745600 + 1261129 = 3840^2 + 1123^2 .

It is an emirp because it is prime and its reverse (92760061) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16006729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16006729.

It is not a weakly prime, because it can be changed into another prime (16006723) 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, 8003364 + 8003365.

It is an arithmetic number, because the mean of its divisors is an integer number (8003365).

Almost surely, 2^16006729 is an apocalyptic number.

It is an amenable number.

16006729 is a deficient number, since it is larger than the sum of its proper divisors (1).

16006729 is an equidigital number, since it uses as much as digits as its factorization.

16006729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 16006729 is about 4000.8410365822. The cubic root of 16006729 is about 252.0195300644.

The spelling of 16006729 in words is "sixteen million, six thousand, seven hundred twenty-nine".