16213389 has 16 divisors (see below), whose sum is σ = 22254912. Its totient is φ = 10494848.

The previous prime is 16213381. The next prime is 16213391. The reversal of 16213389 is 98331261.

It is not a de Polignac number, because 16213389 - 2³ = 16213381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16213381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16537 + ... + 17489.

It is an arithmetic number, because the mean of its divisors is an integer number (1390932).

Almost surely, 2^16213389 is an apocalyptic number.

It is an amenable number.

16213389 is a deficient number, since it is larger than the sum of its proper divisors (6041523).

16213389 is a wasteful number, since it uses less digits than its factorization.

16213389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116.

The product of its digits is 7776, while the sum is 33.

The square root of 16213389 is about 4026.5852778750. The cubic root of 16213389 is about 253.0994885430.

The spelling of 16213389 in words is "sixteen million, two hundred thirteen thousand, three hundred eighty-nine".