16740865 has 8 divisors (see below), whose sum is σ = 20161728. Its totient is φ = 13344240.

The previous prime is 16740853. The next prime is 16740907. The reversal of 16740865 is 56804761.

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

It is not a de Polignac number, because 16740865 - 2¹¹ = 16738817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 4501 + ... + 7330.

It is an arithmetic number, because the mean of its divisors is an integer number (2520216).

Almost surely, 2^16740865 is an apocalyptic number.

It is an amenable number.

16740865 is a deficient number, since it is larger than the sum of its proper divisors (3420863).

16740865 is a wasteful number, since it uses less digits than its factorization.

16740865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12119.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 16740865 is about 4091.5602158590. The cubic root of 16740865 is about 255.8149755584.

The spelling of 16740865 in words is "sixteen million, seven hundred forty thousand, eight hundred sixty-five".