72322043 has 2 divisors, whose sum is σ = 72322044. Its totient is φ = 72322042.

The previous prime is 72322031. The next prime is 72322057. The reversal of 72322043 is 34022327.

It is a weak prime.

It is an emirp because it is prime and its reverse (34022327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72322043 - 2¹⁰ = 72321019 is a prime.

It is not a weakly prime, because it can be changed into another prime (72322643) 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 as a sum of consecutive naturals, namely, 36161021 + 36161022.

It is an arithmetic number, because the mean of its divisors is an integer number (36161022).

Almost surely, 2^72322043 is an apocalyptic number.

72322043 is a deficient number, since it is larger than the sum of its proper divisors (1).

72322043 is an equidigital number, since it uses as much as digits as its factorization.

72322043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 72322043 is about 8504.2367676353. The cubic root of 72322043 is about 416.6360980952.

The spelling of 72322043 in words is "seventy-two million, three hundred twenty-two thousand, forty-three".