16000729 has 2 divisors, whose sum is σ = 16000730. Its totient is φ = 16000728.

The previous prime is 16000711. The next prime is 16000759. The reversal of 16000729 is 92700061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16000000 + 729 = 4000^2 + 27^2 .

It is a cyclic number.

It is not a de Polignac number, because 16000729 - 2⁵ = 16000697 is a prime.

It is not a weakly prime, because it can be changed into another prime (16000759) 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, 8000364 + 8000365.

It is an arithmetic number, because the mean of its divisors is an integer number (8000365).

Almost surely, 2^16000729 is an apocalyptic number.

It is an amenable number.

16000729 is a deficient number, since it is larger than the sum of its proper divisors (1).

16000729 is an equidigital number, since it uses as much as digits as its factorization.

16000729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 16000729 is about 4000.0911239621. The cubic root of 16000729 is about 251.9880369310.

The spelling of 16000729 in words is "sixteen million, seven hundred twenty-nine", and thus it is an aban number.