72173341 has 4 divisors (see below), whose sum is σ = 73708992. Its totient is φ = 70637692.

The previous prime is 72173329. The next prime is 72173357. The reversal of 72173341 is 14337127.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72173341 - 2¹¹ = 72171293 is a prime.

It is a super-2 number, since 2×72173341² = 10417982302204562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72173441) 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 3 ways as a sum of consecutive naturals, for example, 767755 + ... + 767848.

It is an arithmetic number, because the mean of its divisors is an integer number (18427248).

Almost surely, 2^72173341 is an apocalyptic number.

It is an amenable number.

72173341 is a deficient number, since it is larger than the sum of its proper divisors (1535651).

72173341 is a wasteful number, since it uses less digits than its factorization.

72173341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535650.

The product of its digits is 3528, while the sum is 28.

The square root of 72173341 is about 8495.4894502907. The cubic root of 72173341 is about 416.3503524273.

The spelling of 72173341 in words is "seventy-two million, one hundred seventy-three thousand, three hundred forty-one".