72887593 has 2 divisors, whose sum is σ = 72887594. Its totient is φ = 72887592.

The previous prime is 72887567. The next prime is 72887663. The reversal of 72887593 is 39578827.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42549529 + 30338064 = 6523^2 + 5508^2 .

It is a cyclic number.

It is not a de Polignac number, because 72887593 - 2⁹ = 72887081 is a prime.

It is not a weakly prime, because it can be changed into another prime (72881593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36443796 + 36443797.

It is an arithmetic number, because the mean of its divisors is an integer number (36443797).

Almost surely, 2^72887593 is an apocalyptic number.

It is an amenable number.

72887593 is a deficient number, since it is larger than the sum of its proper divisors (1).

72887593 is an equidigital number, since it uses as much as digits as its factorization.

72887593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 49.

The square root of 72887593 is about 8537.4230889654. The cubic root of 72887593 is about 417.7192948359.

The spelling of 72887593 in words is "seventy-two million, eight hundred eighty-seven thousand, five hundred ninety-three".