16397672 has 16 divisors (see below), whose sum is σ = 30789060. Its totient is φ = 8187264.

The previous prime is 16397669. The next prime is 16397681. The reversal of 16397672 is 27679361.

It can be written as a sum of positive squares in 2 ways, for example, as 16370116 + 27556 = 4046^2 + 166^2 .

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 3 ways as a sum of consecutive naturals, for example, 9068 + ... + 10724.

Almost surely, 2^16397672 is an apocalyptic number.

It is an amenable number.

16397672 is a deficient number, since it is larger than the sum of its proper divisors (14391388).

16397672 is a wasteful number, since it uses less digits than its factorization.

16397672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2900 (or 2896 counting only the distinct ones).

The product of its digits is 95256, while the sum is 41.

The square root of 16397672 is about 4049.4039067497. The cubic root of 16397672 is about 254.0547962874.

The spelling of 16397672 in words is "sixteen million, three hundred ninety-seven thousand, six hundred seventy-two".