16973709 has 16 divisors (see below), whose sum is σ = 23493120. Its totient is φ = 10889280.

The previous prime is 16973699. The next prime is 16973743. The reversal of 16973709 is 90737961.

It is not a de Polignac number, because 16973709 - 2⁷ = 16973581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16973309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20899 + ... + 21695.

It is an arithmetic number, because the mean of its divisors is an integer number (1468320).

Almost surely, 2^16973709 is an apocalyptic number.

It is an amenable number.

16973709 is a deficient number, since it is larger than the sum of its proper divisors (6519411).

16973709 is a wasteful number, since it uses less digits than its factorization.

16973709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060.

The product of its (nonzero) digits is 71442, while the sum is 42.

The square root of 16973709 is about 4119.9161399232. The cubic root of 16973709 is about 256.9955385883.

The spelling of 16973709 in words is "sixteen million, nine hundred seventy-three thousand, seven hundred nine".