163706963 has 4 divisors (see below), whose sum is σ = 187093680. Its totient is φ = 140320248.

The previous prime is 163706941. The next prime is 163706987. The reversal of 163706963 is 369607361.

163706963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 369607361 = 19 ⋅19453019.

It is a cyclic number.

It is not a de Polignac number, because 163706963 - 2⁶ = 163706899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163706963.

It is not an unprimeable number, because it can be changed into a prime (163706903) 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, 11693348 + ... + 11693361.

It is an arithmetic number, because the mean of its divisors is an integer number (46773420).

Almost surely, 2^163706963 is an apocalyptic number.

163706963 is a deficient number, since it is larger than the sum of its proper divisors (23386717).

163706963 is an equidigital number, since it uses as much as digits as its factorization.

163706963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23386716.

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 163706963 is about 12794.8021868257. The cubic root of 163706963 is about 547.0441573172.

The spelling of 163706963 in words is "one hundred sixty-three million, seven hundred six thousand, nine hundred sixty-three".