16317213 has 24 divisors (see below), whose sum is σ = 24259200. Its totient is φ = 9746880.

The previous prime is 16317209. The next prime is 16317233. The reversal of 16317213 is 31271361.

It is not a de Polignac number, because 16317213 - 2² = 16317209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16317233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28393 + ... + 28961.

It is an arithmetic number, because the mean of its divisors is an integer number (1010800).

Almost surely, 2^16317213 is an apocalyptic number.

It is an amenable number.

16317213 is a deficient number, since it is larger than the sum of its proper divisors (7941987).

16317213 is a wasteful number, since it uses less digits than its factorization.

16317213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673 (or 662 counting only the distinct ones).

The product of its digits is 756, while the sum is 24.

The square root of 16317213 is about 4039.4570179666. The cubic root of 16317213 is about 253.6385884434.

Adding to 16317213 its reverse (31271361), we get a palindrome (47588574).

The spelling of 16317213 in words is "sixteen million, three hundred seventeen thousand, two hundred thirteen".