16855933 has 4 divisors (see below), whose sum is σ = 16920288. Its totient is φ = 16791580.

The previous prime is 16855921. The next prime is 16855963. The reversal of 16855933 is 33955861.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33955861 = 137 ⋅247853.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16855933 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 (16855963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31783 + ... + 32308.

It is an arithmetic number, because the mean of its divisors is an integer number (4230072).

Almost surely, 2^16855933 is an apocalyptic number.

It is an amenable number.

16855933 is a deficient number, since it is larger than the sum of its proper divisors (64355).

16855933 is an equidigital number, since it uses as much as digits as its factorization.

16855933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64354.

The product of its digits is 97200, while the sum is 40.

The square root of 16855933 is about 4105.5977640290. The cubic root of 16855933 is about 256.3997508197.

The spelling of 16855933 in words is "sixteen million, eight hundred fifty-five thousand, nine hundred thirty-three".