16006709 has 2 divisors, whose sum is σ = 16006710. Its totient is φ = 16006708.

The previous prime is 16006703. The next prime is 16006723. The reversal of 16006709 is 90760061.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13912900 + 2093809 = 3730^2 + 1447^2 .

It is a cyclic number.

It is not a de Polignac number, because 16006709 - 2²⁰ = 14958133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16006703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8003354 + 8003355.

It is an arithmetic number, because the mean of its divisors is an integer number (8003355).

Almost surely, 2^16006709 is an apocalyptic number.

It is an amenable number.

16006709 is a deficient number, since it is larger than the sum of its proper divisors (1).

16006709 is an equidigital number, since it uses as much as digits as its factorization.

16006709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 16006709 is about 4000.8385371069. The cubic root of 16006709 is about 252.0194251004.

The spelling of 16006709 in words is "sixteen million, six thousand, seven hundred nine".