16936393 has 4 divisors (see below), whose sum is σ = 17100928. Its totient is φ = 16771860.

The previous prime is 16936379. The next prime is 16936397. The reversal of 16936393 is 39363961.

It is a happy number.

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 16936393 - 2²¹ = 14839241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16936397) 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, 82113 + ... + 82318.

It is an arithmetic number, because the mean of its divisors is an integer number (4275232).

Almost surely, 2^16936393 is an apocalyptic number.

It is an amenable number.

16936393 is a deficient number, since it is larger than the sum of its proper divisors (164535).

16936393 is a wasteful number, since it uses less digits than its factorization.

16936393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164534.

The product of its digits is 78732, while the sum is 40.

The square root of 16936393 is about 4115.3849151689. The cubic root of 16936393 is about 256.8070690384.

The spelling of 16936393 in words is "sixteen million, nine hundred thirty-six thousand, three hundred ninety-three".