16397072 has 20 divisors (see below), whose sum is σ = 31874076. Its totient is φ = 8171520.

The previous prime is 16397063. The next prime is 16397107. The reversal of 16397072 is 27079361.

It can be written as a sum of positive squares in 2 ways, for example, as 11397376 + 4999696 = 3376^2 + 2236^2 .

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3872 + ... + 6912.

Almost surely, 2^16397072 is an apocalyptic number.

It is an amenable number.

16397072 is a deficient number, since it is larger than the sum of its proper divisors (15477004).

16397072 is a wasteful number, since it uses less digits than its factorization.

16397072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3386 (or 3380 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 16397072 is about 4049.3298210939. The cubic root of 16397072 is about 254.0516975805.

The spelling of 16397072 in words is "sixteen million, three hundred ninety-seven thousand, seventy-two".