16108709 has 2 divisors, whose sum is σ = 16108710. Its totient is φ = 16108708.

The previous prime is 16108699. The next prime is 16108721. The reversal of 16108709 is 90780161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15880225 + 228484 = 3985^2 + 478^2 .

It is a cyclic number.

It is not a de Polignac number, because 16108709 - 2¹⁶ = 16043173 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16108739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8054354 + 8054355.

It is an arithmetic number, because the mean of its divisors is an integer number (8054355).

Almost surely, 2^16108709 is an apocalyptic number.

It is an amenable number.

16108709 is a deficient number, since it is larger than the sum of its proper divisors (1).

16108709 is an equidigital number, since it uses as much as digits as its factorization.

16108709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 16108709 is about 4013.5656217384. The cubic root of 16108709 is about 252.5536088507.

The spelling of 16108709 in words is "sixteen million, one hundred eight thousand, seven hundred nine".