16716684 has 48 divisors (see below), whose sum is σ = 40684896. Its totient is φ = 5337600.

The previous prime is 16716683. The next prime is 16716691. The reversal of 16716684 is 48661761.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16716683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29734 + ... + 30290.

It is an arithmetic number, because the mean of its divisors is an integer number (847602).

Almost surely, 2^16716684 is an apocalyptic number.

It is an amenable number.

16716684 is an abundant number, since it is smaller than the sum of its proper divisors (23968212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16716684 is a wasteful number, since it uses less digits than its factorization.

16716684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666 (or 664 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 16716684 is about 4088.6041627920. The cubic root of 16716684 is about 255.6917473050.

It can be divided in two parts, 1671 and 6684, that multiplied together give a square (11168964 = 3342²).

The spelling of 16716684 in words is "sixteen million, seven hundred sixteen thousand, six hundred eighty-four".