163984079 has 24 divisors (see below), whose sum is σ = 204001920. Its totient is φ = 128764080.

The previous prime is 163984063. The next prime is 163984087. The reversal of 163984079 is 970489361.

It is not a de Polignac number, because 163984079 - 2⁴ = 163984063 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 (163984019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127172 + ... + 128454.

It is an arithmetic number, because the mean of its divisors is an integer number (8500080).

Almost surely, 2^163984079 is an apocalyptic number.

163984079 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

163984079 is a deficient number, since it is larger than the sum of its proper divisors (40017841).

163984079 is a wasteful number, since it uses less digits than its factorization.

163984079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371 (or 1340 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 163984079 is about 12805.6268491628. The cubic root of 163984079 is about 547.3526541350.

The spelling of 163984079 in words is "one hundred sixty-three million, nine hundred eighty-four thousand, seventy-nine".