72793559 has 2 divisors, whose sum is σ = 72793560. Its totient is φ = 72793558.

The previous prime is 72793537. The next prime is 72793577. The reversal of 72793559 is 95539727.

It is a strong prime.

It is an emirp because it is prime and its reverse (95539727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72793559 - 2¹² = 72789463 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72793519) 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, 36396779 + 36396780.

It is an arithmetic number, because the mean of its divisors is an integer number (36396780).

Almost surely, 2^72793559 is an apocalyptic number.

72793559 is a deficient number, since it is larger than the sum of its proper divisors (1).

72793559 is an equidigital number, since it uses as much as digits as its factorization.

72793559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 595350, while the sum is 47.

The square root of 72793559 is about 8531.9141463097. The cubic root of 72793559 is about 417.5395810299.

The spelling of 72793559 in words is "seventy-two million, seven hundred ninety-three thousand, five hundred fifty-nine".