163705973 has 8 divisors (see below), whose sum is σ = 171081600. Its totient is φ = 156351888.

The previous prime is 163705967. The next prime is 163705979. The reversal of 163705973 is 379507361.

It is an interprime number because it is at equal distance from previous prime (163705967) and next prime (163705979).

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

It is a cyclic number.

It is not a de Polignac number, because 163705973 - 2¹⁰ = 163704949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 163705973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163705979) 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, 11288 + ... + 21326.

It is an arithmetic number, because the mean of its divisors is an integer number (21385200).

Almost surely, 2^163705973 is an apocalyptic number.

It is an amenable number.

163705973 is a deficient number, since it is larger than the sum of its proper divisors (7375627).

163705973 is a wasteful number, since it uses less digits than its factorization.

163705973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10771.

The product of its (nonzero) digits is 119070, while the sum is 41.

The square root of 163705973 is about 12794.7634991820. The cubic root of 163705973 is about 547.0430545850.

The spelling of 163705973 in words is "one hundred sixty-three million, seven hundred five thousand, nine hundred seventy-three".