16734489 has 4 divisors (see below), whose sum is σ = 22312656. Its totient is φ = 11156324.

The previous prime is 16734481. The next prime is 16734493. The reversal of 16734489 is 98443761.

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.

It is a cyclic number.

It is not a de Polignac number, because 16734489 - 2³ = 16734481 is a prime.

It is a super-2 number, since 2×16734489² = 560086244182242, which contains 22 as substring.

It is a nialpdrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 16734489.

It is not an unprimeable number, because it can be changed into a prime (16734481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2789079 + ... + 2789084.

It is an arithmetic number, because the mean of its divisors is an integer number (5578164).

Almost surely, 2^16734489 is an apocalyptic number.

It is an amenable number.

16734489 is a deficient number, since it is larger than the sum of its proper divisors (5578167).

16734489 is an equidigital number, since it uses as much as digits as its factorization.

16734489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5578166.

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

The square root of 16734489 is about 4090.7809767818. The cubic root of 16734489 is about 255.7824944928.

The spelling of 16734489 in words is "sixteen million, seven hundred thirty-four thousand, four hundred eighty-nine".