16347489 has 8 divisors (see below), whose sum is σ = 23078880. Its totient is φ = 10257216.

The previous prime is 16347481. The next prime is 16347491. The reversal of 16347489 is 98474361.

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

It is not a de Polignac number, because 16347489 - 2³ = 16347481 is a prime.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 16347489.

It is not an unprimeable number, because it can be changed into a prime (16347481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160219 + ... + 160320.

It is an arithmetic number, because the mean of its divisors is an integer number (2884860).

Almost surely, 2^16347489 is an apocalyptic number.

It is an amenable number.

16347489 is a deficient number, since it is larger than the sum of its proper divisors (6731391).

16347489 is a wasteful number, since it uses less digits than its factorization.

16347489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320559.

The product of its digits is 145152, while the sum is 42.

The square root of 16347489 is about 4043.2028146013. The cubic root of 16347489 is about 253.7953639362.

It can be divided in two parts, 16347 and 489, that added together give a triangular number (16836 = T₁₈₃).

The spelling of 16347489 in words is "sixteen million, three hundred forty-seven thousand, four hundred eighty-nine".