16389933 has 16 divisors (see below), whose sum is σ = 25044096. Its totient is φ = 9339840.

The previous prime is 16389929. The next prime is 16389937. The reversal of 16389933 is 33998361.

It is an interprime number because it is at equal distance from previous prime (16389929) and next prime (16389937).

It is not a de Polignac number, because 16389933 - 2² = 16389929 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16389937) 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, 8835 + ... + 10527.

It is an arithmetic number, because the mean of its divisors is an integer number (1565256).

Almost surely, 2^16389933 is an apocalyptic number.

It is an amenable number.

16389933 is a deficient number, since it is larger than the sum of its proper divisors (8654163).

16389933 is a wasteful number, since it uses less digits than its factorization.

16389933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164.

The product of its digits is 104976, while the sum is 42.

The square root of 16389933 is about 4048.4482212324. The cubic root of 16389933 is about 254.0148223313.

The spelling of 16389933 in words is "sixteen million, three hundred eighty-nine thousand, nine hundred thirty-three".