16208397 has 8 divisors (see below), whose sum is σ = 24012480. Its totient is φ = 10805580.

The previous prime is 16208393. The next prime is 16208431. The reversal of 16208397 is 79380261.

It is not a de Polignac number, because 16208397 - 2² = 16208393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16208393) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 300129 + ... + 300182.

It is an arithmetic number, because the mean of its divisors is an integer number (3001560).

Almost surely, 2^16208397 is an apocalyptic number.

It is an amenable number.

16208397 is a deficient number, since it is larger than the sum of its proper divisors (7804083).

16208397 is an equidigital number, since it uses as much as digits as its factorization.

16208397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600320 (or 600314 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 16208397 is about 4025.9653500744. The cubic root of 16208397 is about 253.0735099657.

The spelling of 16208397 in words is "sixteen million, two hundred eight thousand, three hundred ninety-seven".