16328197 has 4 divisors (see below), whose sum is σ = 16373056. Its totient is φ = 16283340.

The previous prime is 16328173. The next prime is 16328219. The reversal of 16328197 is 79182361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16328197 - 2⁷ = 16328069 is a prime.

It is a super-2 number, since 2×16328197² = 533220034541618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16328167) by changing a digit.

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, 21879 + ... + 22612.

It is an arithmetic number, because the mean of its divisors is an integer number (4093264).

Almost surely, 2^16328197 is an apocalyptic number.

It is an amenable number.

16328197 is a deficient number, since it is larger than the sum of its proper divisors (44859).

16328197 is an equidigital number, since it uses as much as digits as its factorization.

16328197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44858.

The product of its digits is 18144, while the sum is 37.

The square root of 16328197 is about 4040.8163779118. The cubic root of 16328197 is about 253.6954883025.

The spelling of 16328197 in words is "sixteen million, three hundred twenty-eight thousand, one hundred ninety-seven".