16816704 has 28 divisors (see below), whose sum is σ = 44494704. Its totient is φ = 5605504.

The previous prime is 16816699. The next prime is 16816717. The reversal of 16816704 is 40761861.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43602 + ... + 43985.

Almost surely, 2^16816704 is an apocalyptic number.

It is an amenable number.

16816704 is an abundant number, since it is smaller than the sum of its proper divisors (27678000).

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

16816704 is an equidigital number, since it uses as much as digits as its factorization.

16816704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87602 (or 87592 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 16816704 is about 4100.8174794789. The cubic root of 16816704 is about 256.2006889847.

It can be divided in two parts, 1681 and 6704, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 16816704 in words is "sixteen million, eight hundred sixteen thousand, seven hundred four".