72084589 has 2 divisors, whose sum is σ = 72084590. Its totient is φ = 72084588.

The previous prime is 72084583. The next prime is 72084619. The reversal of 72084589 is 98548027.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72080100 + 4489 = 8490^2 + 67^2 .

It is an emirp because it is prime and its reverse (98548027) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72084589 - 2³ = 72084581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72084581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36042294 + 36042295.

It is an arithmetic number, because the mean of its divisors is an integer number (36042295).

Almost surely, 2^72084589 is an apocalyptic number.

It is an amenable number.

72084589 is a deficient number, since it is larger than the sum of its proper divisors (1).

72084589 is an equidigital number, since it uses as much as digits as its factorization.

72084589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 72084589 is about 8490.2643657309. The cubic root of 72084589 is about 416.1796195639.

The spelling of 72084589 in words is "seventy-two million, eighty-four thousand, five hundred eighty-nine".