16740609 has 8 divisors (see below), whose sum is σ = 22340352. Its totient is φ = 11150640.

The previous prime is 16740599. The next prime is 16740623. The reversal of 16740609 is 90604761.

It is a happy number.

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

It is not a de Polignac number, because 16740609 - 2¹⁶ = 16675073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16740609.

It is not an unprimeable number, because it can be changed into a prime (16740109) 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, 3939 + ... + 6999.

It is an arithmetic number, because the mean of its divisors is an integer number (2792544).

Almost surely, 2^16740609 is an apocalyptic number.

It is an amenable number.

16740609 is a deficient number, since it is larger than the sum of its proper divisors (5599743).

16740609 is a wasteful number, since it uses less digits than its factorization.

16740609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4887.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 16740609 is about 4091.5289318298. The cubic root of 16740609 is about 255.8136715842.

The spelling of 16740609 in words is "sixteen million, seven hundred forty thousand, six hundred nine".