72974163 has 8 divisors (see below), whose sum is σ = 99134928. Its totient is φ = 47731424.

The previous prime is 72974159. The next prime is 72974171. The reversal of 72974163 is 36147927.

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 72974163 - 2² = 72974159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72974113) 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, 229320 + ... + 229637.

It is an arithmetic number, because the mean of its divisors is an integer number (12391866).

Almost surely, 2^72974163 is an apocalyptic number.

72974163 is a deficient number, since it is larger than the sum of its proper divisors (26160765).

72974163 is a wasteful number, since it uses less digits than its factorization.

72974163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459013.

The product of its digits is 63504, while the sum is 39.

The square root of 72974163 is about 8542.4916154480. The cubic root of 72974163 is about 417.8846071593.

It can be divided in two parts, 72974 and 163, that added together give a palindrome (73137).

The spelling of 72974163 in words is "seventy-two million, nine hundred seventy-four thousand, one hundred sixty-three".