163806369 has 8 divisors (see below), whose sum is σ = 220862880. Its totient is φ = 107977056.

The previous prime is 163806367. The next prime is 163806389. The reversal of 163806369 is 963608361.

163806369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 163806369 - 2¹ = 163806367 is a prime.

It is a super-2 number, since 2×163806369² = 53665053049928322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 163806369.

It is not an unprimeable number, because it can be changed into a prime (163806367) 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, 306487 + ... + 307020.

It is an arithmetic number, because the mean of its divisors is an integer number (27607860).

Almost surely, 2^163806369 is an apocalyptic number.

It is an amenable number.

163806369 is a deficient number, since it is larger than the sum of its proper divisors (57056511).

163806369 is an equidigital number, since it uses as much as digits as its factorization.

163806369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613599.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 163806369 is about 12798.6862216401. The cubic root of 163806369 is about 547.1548601394.

The spelling of 163806369 in words is "one hundred sixty-three million, eight hundred six thousand, three hundred sixty-nine".