163879849 has 4 divisors (see below), whose sum is σ = 187291264. Its totient is φ = 140468436.

The previous prime is 163879831. The next prime is 163879861. The reversal of 163879849 is 948978361.

163879849 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 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 163879849 - 2⁷ = 163879721 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 163879849.

It is not an unprimeable number, because it can be changed into a prime (163879249) 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, 11705697 + ... + 11705710.

It is an arithmetic number, because the mean of its divisors is an integer number (46822816).

Almost surely, 2^163879849 is an apocalyptic number.

It is an amenable number.

163879849 is a deficient number, since it is larger than the sum of its proper divisors (23411415).

163879849 is an equidigital number, since it uses as much as digits as its factorization.

163879849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23411414.

The product of its digits is 2612736, while the sum is 55.

The square root of 163879849 is about 12801.5565069252. The cubic root of 163879849 is about 547.2366618609.

The spelling of 163879849 in words is "one hundred sixty-three million, eight hundred seventy-nine thousand, eight hundred forty-nine".