16397704 has 16 divisors (see below), whose sum is σ = 31496220. Its totient is φ = 7998720.

The previous prime is 16397699. The next prime is 16397713. The reversal of 16397704 is 40779361.

16397704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 15760900 + 636804 = 3970^2 + 798^2 .

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, 24669 + ... + 25324.

Almost surely, 2^16397704 is an apocalyptic number.

It is an amenable number.

16397704 is a deficient number, since it is larger than the sum of its proper divisors (15098516).

16397704 is a wasteful number, since it uses less digits than its factorization.

16397704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50040 (or 50036 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 16397704 is about 4049.4078579466. The cubic root of 16397704 is about 254.0549615496.

The spelling of 16397704 in words is "sixteen million, three hundred ninety-seven thousand, seven hundred four".