163894841 has 8 divisors (see below), whose sum is σ = 189311904. Its totient is φ = 140230720.

The previous prime is 163894831. The next prime is 163894877. The reversal of 163894841 is 148498361.

163894841 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163894841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163894792 and 163894801.

It is not an unprimeable number, because it can be changed into a prime (163894831) 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, 438035 + ... + 438408.

It is an arithmetic number, because the mean of its divisors is an integer number (23663988).

Almost surely, 2^163894841 is an apocalyptic number.

163894841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163894841 is a deficient number, since it is larger than the sum of its proper divisors (25417063).

163894841 is a wasteful number, since it uses less digits than its factorization.

163894841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876471.

The product of its digits is 165888, while the sum is 44.

The square root of 163894841 is about 12802.1420473294. The cubic root of 163894841 is about 547.2533487241.

The spelling of 163894841 in words is "one hundred sixty-three million, eight hundred ninety-four thousand, eight hundred forty-one".