16371389 has 4 divisors (see below), whose sum is σ = 16425024. Its totient is φ = 16317756.

The previous prime is 16371373. The next prime is 16371401. The reversal of 16371389 is 98317361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98317361 = 179 ⋅549259.

It is a cyclic number.

It is not a de Polignac number, because 16371389 - 2⁴ = 16371373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16371319) 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 3 ways as a sum of consecutive naturals, for example, 26357 + ... + 26970.

It is an arithmetic number, because the mean of its divisors is an integer number (4106256).

Almost surely, 2^16371389 is an apocalyptic number.

It is an amenable number.

16371389 is a deficient number, since it is larger than the sum of its proper divisors (53635).

16371389 is an equidigital number, since it uses as much as digits as its factorization.

16371389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53634.

The product of its digits is 27216, while the sum is 38.

The square root of 16371389 is about 4046.1573128093. The cubic root of 16371389 is about 253.9189865015.

The spelling of 16371389 in words is "sixteen million, three hundred seventy-one thousand, three hundred eighty-nine".