72018323 has 8 divisors (see below), whose sum is σ = 77994000. Its totient is φ = 66104928.

The previous prime is 72018319. The next prime is 72018377. The reversal of 72018323 is 32381027.

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 72018323 - 2² = 72018319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72018292 and 72018301.

It is not an unprimeable number, because it can be changed into a prime (72018623) 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 7 ways as a sum of consecutive naturals, for example, 13148 + ... + 17801.

It is an arithmetic number, because the mean of its divisors is an integer number (9749250).

Almost surely, 2^72018323 is an apocalyptic number.

72018323 is a deficient number, since it is larger than the sum of its proper divisors (5975677).

72018323 is a wasteful number, since it uses less digits than its factorization.

72018323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31141.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 72018323 is about 8486.3609986849. The cubic root of 72018323 is about 416.0520517800.

The spelling of 72018323 in words is "seventy-two million, eighteen thousand, three hundred twenty-three".