72652173 has 8 divisors (see below), whose sum is σ = 105675936. Its totient is φ = 44031600.

The previous prime is 72652171. The next prime is 72652199. The reversal of 72652173 is 37125627.

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

It is not a de Polignac number, because 72652173 - 2¹ = 72652171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 2201581 = 72652173 / (7 + 2 + 6 + 5 + 2 + 1 + 7 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72652171) 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, 1100758 + ... + 1100823.

It is an arithmetic number, because the mean of its divisors is an integer number (13209492).

Almost surely, 2^72652173 is an apocalyptic number.

It is an amenable number.

72652173 is a deficient number, since it is larger than the sum of its proper divisors (33023763).

72652173 is a wasteful number, since it uses less digits than its factorization.

72652173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201595.

The product of its digits is 17640, while the sum is 33.

The square root of 72652173 is about 8523.6244051460. The cubic root of 72652173 is about 417.2690785578.

The spelling of 72652173 in words is "seventy-two million, six hundred fifty-two thousand, one hundred seventy-three".