16996693 has 4 divisors (see below), whose sum is σ = 19424800. Its totient is φ = 14568588.

The previous prime is 16996691. The next prime is 16996709. The reversal of 16996693 is 39669961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16996693 - 2¹ = 16996691 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 (16996691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214043 + ... + 1214056.

It is an arithmetic number, because the mean of its divisors is an integer number (4856200).

Almost surely, 2^16996693 is an apocalyptic number.

It is an amenable number.

16996693 is a deficient number, since it is larger than the sum of its proper divisors (2428107).

16996693 is an equidigital number, since it uses as much as digits as its factorization.

16996693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428106.

The product of its digits is 472392, while the sum is 49.

The square root of 16996693 is about 4122.7045734566. The cubic root of 16996693 is about 257.1114849881. Note that the first 3 decimals are identical.

It can be divided in two parts, 16996 and 693, that added together give a square (17689 = 133²).

The spelling of 16996693 in words is "sixteen million, nine hundred ninety-six thousand, six hundred ninety-three".