16493399 has 8 divisors (see below), whose sum is σ = 17820432. Its totient is φ = 15174720.

The previous prime is 16493377. The next prime is 16493413. The reversal of 16493399 is 99339461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16493399 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16493329) 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 7 ways as a sum of consecutive naturals, for example, 2387 + ... + 6219.

It is an arithmetic number, because the mean of its divisors is an integer number (2227554).

Almost surely, 2^16493399 is an apocalyptic number.

16493399 is a deficient number, since it is larger than the sum of its proper divisors (1327033).

16493399 is a wasteful number, since it uses less digits than its factorization.

16493399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4177.

The product of its digits is 157464, while the sum is 44.

The square root of 16493399 is about 4061.2065941048. The cubic root of 16493399 is about 254.5482145225.

The spelling of 16493399 in words is "sixteen million, four hundred ninety-three thousand, three hundred ninety-nine".