72959543 has 2 divisors, whose sum is σ = 72959544. Its totient is φ = 72959542.

The previous prime is 72959527. The next prime is 72959591. The reversal of 72959543 is 34595927.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72959543 - 2⁴ = 72959527 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 72959494 and 72959503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72959503) 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, 36479771 + 36479772.

It is an arithmetic number, because the mean of its divisors is an integer number (36479772).

Almost surely, 2^72959543 is an apocalyptic number.

72959543 is a deficient number, since it is larger than the sum of its proper divisors (1).

72959543 is an equidigital number, since it uses as much as digits as its factorization.

72959543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 44.

The square root of 72959543 is about 8541.6358503509. The cubic root of 72959543 is about 417.8566982814.

The spelling of 72959543 in words is "seventy-two million, nine hundred fifty-nine thousand, five hundred forty-three".