16396199 has 4 divisors (see below), whose sum is σ = 16406160. Its totient is φ = 16386240.

The previous prime is 16396181. The next prime is 16396229. The reversal of 16396199 is 99169361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 16396199 - 2¹⁶ = 16330663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16396169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1859 + ... + 6020.

It is an arithmetic number, because the mean of its divisors is an integer number (4101540).

Almost surely, 2^16396199 is an apocalyptic number.

16396199 is a deficient number, since it is larger than the sum of its proper divisors (9961).

16396199 is an equidigital number, since it uses as much as digits as its factorization.

16396199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9960.

The product of its digits is 78732, while the sum is 44.

The square root of 16396199 is about 4049.2220240436. Note that the first 3 decimals coincide. The cubic root of 16396199 is about 254.0471888270.

The spelling of 16396199 in words is "sixteen million, three hundred ninety-six thousand, one hundred ninety-nine".