72794543 has 2 divisors, whose sum is σ = 72794544. Its totient is φ = 72794542.

The previous prime is 72794537. The next prime is 72794573. The reversal of 72794543 is 34549727.

It is a weak prime.

It is an emirp because it is prime and its reverse (34549727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72794543 - 2¹⁰ = 72793519 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72794543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72794573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36397271 + 36397272.

It is an arithmetic number, because the mean of its divisors is an integer number (36397272).

Almost surely, 2^72794543 is an apocalyptic number.

72794543 is a deficient number, since it is larger than the sum of its proper divisors (1).

72794543 is an equidigital number, since it uses as much as digits as its factorization.

72794543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 41.

The square root of 72794543 is about 8531.9718119553. The cubic root of 72794543 is about 417.5414624102.

It can be divided in two parts, 72794 and 543, that added together give a palindrome (73337).

The spelling of 72794543 in words is "seventy-two million, seven hundred ninety-four thousand, five hundred forty-three".