16090709 has 2 divisors, whose sum is σ = 16090710. Its totient is φ = 16090708.

The previous prime is 16090703. The next prime is 16090717. The reversal of 16090709 is 90709061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16080100 + 10609 = 4010^2 + 103^2 .

It is a cyclic number.

It is not a de Polignac number, because 16090709 - 2⁴ = 16090693 is a prime.

It is a super-2 number, since 2×16090709² = 517821832245362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16090703) 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, 8045354 + 8045355.

It is an arithmetic number, because the mean of its divisors is an integer number (8045355).

Almost surely, 2^16090709 is an apocalyptic number.

It is an amenable number.

16090709 is a deficient number, since it is larger than the sum of its proper divisors (1).

16090709 is an equidigital number, since it uses as much as digits as its factorization.

16090709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 16090709 is about 4011.3225998416. The cubic root of 16090709 is about 252.4595053186.

The spelling of 16090709 in words is "sixteen million, ninety thousand, seven hundred nine".