16691373 has 8 divisors (see below), whose sum is σ = 24728000. Its totient is φ = 11127564.

The previous prime is 16691371. The next prime is 16691401. The reversal of 16691373 is 37319661.

It is not a de Polignac number, because 16691373 - 2¹ = 16691371 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16691371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309073 + ... + 309126.

It is an arithmetic number, because the mean of its divisors is an integer number (3091000).

Almost surely, 2^16691373 is an apocalyptic number.

It is an amenable number.

16691373 is a deficient number, since it is larger than the sum of its proper divisors (8036627).

16691373 is an equidigital number, since it uses as much as digits as its factorization.

16691373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618208 (or 618202 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 16691373 is about 4085.5076795914. The cubic root of 16691373 is about 255.5626331233.

The spelling of 16691373 in words is "sixteen million, six hundred ninety-one thousand, three hundred seventy-three".