16727797 has 2 divisors, whose sum is σ = 16727798. Its totient is φ = 16727796.

The previous prime is 16727791. The next prime is 16727819. The reversal of 16727797 is 79772761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16597476 + 130321 = 4074^2 + 361^2 .

It is an emirp because it is prime and its reverse (79772761) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16727797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16727791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8363898 + 8363899.

It is an arithmetic number, because the mean of its divisors is an integer number (8363899).

Almost surely, 2^16727797 is an apocalyptic number.

It is an amenable number.

16727797 is a deficient number, since it is larger than the sum of its proper divisors (1).

16727797 is an equidigital number, since it uses as much as digits as its factorization.

16727797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259308, while the sum is 46.

The square root of 16727797 is about 4089.9629582675. The cubic root of 16727797 is about 255.7483947629.

The spelling of 16727797 in words is "sixteen million, seven hundred twenty-seven thousand, seven hundred ninety-seven".