163982972 has 12 divisors (see below), whose sum is σ = 289065840. Its totient is φ = 81392736.

The previous prime is 163982971. The next prime is 163982981. The reversal of 163982972 is 279289361.

It is a happy number.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163982971) 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, 149072 + ... + 150167.

It is an arithmetic number, because the mean of its divisors is an integer number (24088820).

Almost surely, 2^163982972 is an apocalyptic number.

It is an amenable number.

163982972 is a deficient number, since it is larger than the sum of its proper divisors (125082868).

163982972 is a wasteful number, since it uses less digits than its factorization.

163982972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299380 (or 299378 counting only the distinct ones).

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

The square root of 163982972 is about 12805.5836259032. The cubic root of 163982972 is about 547.3514224692.

The spelling of 163982972 in words is "one hundred sixty-three million, nine hundred eighty-two thousand, nine hundred seventy-two".