16493311 has 4 divisors (see below), whose sum is σ = 17361400. Its totient is φ = 15625224.

The previous prime is 16493299. The next prime is 16493329. The reversal of 16493311 is 11339461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16493311 - 2⁹ = 16492799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16493311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16493341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434016 + ... + 434053.

It is an arithmetic number, because the mean of its divisors is an integer number (4340350).

Almost surely, 2^16493311 is an apocalyptic number.

16493311 is a deficient number, since it is larger than the sum of its proper divisors (868089).

16493311 is an equidigital number, since it uses as much as digits as its factorization.

16493311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868088.

The product of its digits is 1944, while the sum is 28.

The square root of 16493311 is about 4061.1957598717. The cubic root of 16493311 is about 254.5477618104.

The spelling of 16493311 in words is "sixteen million, four hundred ninety-three thousand, three hundred eleven".