16675693 has 4 divisors (see below), whose sum is σ = 16691740. Its totient is φ = 16659648.

The previous prime is 16675679. The next prime is 16675709. The reversal of 16675693 is 39657661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39657661 = 211 ⋅187951.

It can be written as a sum of positive squares in 2 ways, for example, as 6953769 + 9721924 = 2637^2 + 3118^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16675693 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 (16672693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6348 + ... + 8581.

It is an arithmetic number, because the mean of its divisors is an integer number (4172935).

Almost surely, 2^16675693 is an apocalyptic number.

It is an amenable number.

16675693 is a deficient number, since it is larger than the sum of its proper divisors (16047).

16675693 is a wasteful number, since it uses less digits than its factorization.

16675693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16046.

The product of its digits is 204120, while the sum is 43.

The square root of 16675693 is about 4083.5882505463. The cubic root of 16675693 is about 255.4825822382.

The spelling of 16675693 in words is "sixteen million, six hundred seventy-five thousand, six hundred ninety-three".