72394743 has 8 divisors (see below), whose sum is σ = 96598656. Its totient is φ = 48227000.

The previous prime is 72394717. The next prime is 72394747. The reversal of 72394743 is 34749327.

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 72394743 - 2¹³ = 72386551 is a prime.

It is a super-3 number, since 3×72394743³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72394747) 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, 3963 + ... + 12668.

It is an arithmetic number, because the mean of its divisors is an integer number (12074832).

Almost surely, 2^72394743 is an apocalyptic number.

72394743 is a deficient number, since it is larger than the sum of its proper divisors (24203913).

72394743 is a wasteful number, since it uses less digits than its factorization.

72394743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18085.

The product of its digits is 127008, while the sum is 39.

The square root of 72394743 is about 8508.5100340776. The cubic root of 72394743 is about 416.7756558266.

It can be divided in two parts, 72394 and 743, that added together give a palindrome (73137).

The spelling of 72394743 in words is "seventy-two million, three hundred ninety-four thousand, seven hundred forty-three".