72323163 has 12 divisors (see below), whose sum is σ = 113963928. Its totient is φ = 43832160.

The previous prime is 72323161. The next prime is 72323179. The reversal of 72323163 is 36132327.

It is not a de Polignac number, because 72323163 - 2¹ = 72323161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72323161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 365170 + ... + 365367.

It is an arithmetic number, because the mean of its divisors is an integer number (9496994).

Almost surely, 2^72323163 is an apocalyptic number.

72323163 is a deficient number, since it is larger than the sum of its proper divisors (41640765).

72323163 is a wasteful number, since it uses less digits than its factorization.

72323163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730554 (or 730551 counting only the distinct ones).

The product of its digits is 4536, while the sum is 27.

The square root of 72323163 is about 8504.3026169110. The cubic root of 72323163 is about 416.6382487996.

The spelling of 72323163 in words is "seventy-two million, three hundred twenty-three thousand, one hundred sixty-three".