72232943 has 2 divisors, whose sum is σ = 72232944. Its totient is φ = 72232942.

The previous prime is 72232931. The next prime is 72232957. The reversal of 72232943 is 34923227.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72232943 - 2²⁴ = 55455727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72232913) 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, 36116471 + 36116472.

It is an arithmetic number, because the mean of its divisors is an integer number (36116472).

Almost surely, 2^72232943 is an apocalyptic number.

72232943 is a deficient number, since it is larger than the sum of its proper divisors (1).

72232943 is an equidigital number, since it uses as much as digits as its factorization.

72232943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 32.

The square root of 72232943 is about 8498.9965878332. The cubic root of 72232943 is about 416.4649306798.

The spelling of 72232943 in words is "seventy-two million, two hundred thirty-two thousand, nine hundred forty-three".