72344323 has 2 divisors, whose sum is σ = 72344324. Its totient is φ = 72344322.

The previous prime is 72344309. The next prime is 72344339. The reversal of 72344323 is 32344327.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72344323 - 2²¹ = 70247171 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72344291 and 72344300.

It is not a weakly prime, because it can be changed into another prime (72344303) 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 as a sum of consecutive naturals, namely, 36172161 + 36172162.

It is an arithmetic number, because the mean of its divisors is an integer number (36172162).

Almost surely, 2^72344323 is an apocalyptic number.

72344323 is a deficient number, since it is larger than the sum of its proper divisors (1).

72344323 is an equidigital number, since it uses as much as digits as its factorization.

72344323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 28.

The square root of 72344323 is about 8505.5466020709. The cubic root of 72344323 is about 416.6788775799.

The spelling of 72344323 in words is "seventy-two million, three hundred forty-four thousand, three hundred twenty-three".