72741623 has 8 divisors (see below), whose sum is σ = 77132592. Its totient is φ = 68363136.

The previous prime is 72741601. The next prime is 72741637. The reversal of 72741623 is 32614727.

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 72741623 - 2¹⁰ = 72740599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72741623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72741523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10661 + ... + 16097.

It is an arithmetic number, because the mean of its divisors is an integer number (9641574).

Almost surely, 2^72741623 is an apocalyptic number.

72741623 is a deficient number, since it is larger than the sum of its proper divisors (4390969).

72741623 is a wasteful number, since it uses less digits than its factorization.

72741623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6241.

The product of its digits is 14112, while the sum is 32.

The square root of 72741623 is about 8528.8699720420. The cubic root of 72741623 is about 417.4402567889.

The spelling of 72741623 in words is "seventy-two million, seven hundred forty-one thousand, six hundred twenty-three".