72323105 has 8 divisors (see below), whose sum is σ = 87243264. Its totient is φ = 57554800.

The previous prime is 72323099. The next prime is 72323107. The reversal of 72323105 is 50132327.

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

It is a de Polignac number, because none of the positive numbers 2^k-72323105 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72323107) 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, 36911 + ... + 38820.

It is an arithmetic number, because the mean of its divisors is an integer number (10905408).

Almost surely, 2^72323105 is an apocalyptic number.

It is an amenable number.

72323105 is a deficient number, since it is larger than the sum of its proper divisors (14920159).

72323105 is a wasteful number, since it uses less digits than its factorization.

72323105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75927.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 72323105 is about 8504.2992068718. The cubic root of 72323105 is about 416.6381374244.

The spelling of 72323105 in words is "seventy-two million, three hundred twenty-three thousand, one hundred five".