16397512 has 32 divisors (see below), whose sum is σ = 32613120. Its totient is φ = 7715520.

The previous prime is 16397509. The next prime is 16397519. The reversal of 16397512 is 21579361.

16397512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (16397519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8283 + ... + 10069.

It is an arithmetic number, because the mean of its divisors is an integer number (1019160).

Almost surely, 2^16397512 is an apocalyptic number.

It is an amenable number.

16397512 is a deficient number, since it is larger than the sum of its proper divisors (16215608).

16397512 is a wasteful number, since it uses less digits than its factorization.

16397512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861 (or 1857 counting only the distinct ones).

The product of its digits is 11340, while the sum is 34.

The square root of 16397512 is about 4049.3841507074. The cubic root of 16397512 is about 254.0539699729.

The spelling of 16397512 in words is "sixteen million, three hundred ninety-seven thousand, five hundred twelve".