16396357 has 4 divisors (see below), whose sum is σ = 16457580. Its totient is φ = 16335136.

The previous prime is 16396337. The next prime is 16396361. The reversal of 16396357 is 75369361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75369361 = 73 ⋅1032457.

It can be written as a sum of positive squares in 2 ways, for example, as 1887876 + 14508481 = 1374^2 + 3809^2 .

It is a cyclic number.

It is not a de Polignac number, because 16396357 - 2⁷ = 16396229 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16396327) 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, 30208 + ... + 30745.

It is an arithmetic number, because the mean of its divisors is an integer number (4114395).

Almost surely, 2^16396357 is an apocalyptic number.

It is an amenable number.

16396357 is a deficient number, since it is larger than the sum of its proper divisors (61223).

16396357 is an equidigital number, since it uses as much as digits as its factorization.

16396357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61222.

The product of its digits is 102060, while the sum is 40.

The square root of 16396357 is about 4049.2415339172. The cubic root of 16396357 is about 254.0480048561.

The spelling of 16396357 in words is "sixteen million, three hundred ninety-six thousand, three hundred fifty-seven".