72380089 has 2 divisors, whose sum is σ = 72380090. Its totient is φ = 72380088.

The previous prime is 72380059. The next prime is 72380093. The reversal of 72380089 is 98008327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59166864 + 13213225 = 7692^2 + 3635^2 .

It is a cyclic number.

It is not a de Polignac number, because 72380089 - 2¹¹ = 72378041 is a prime.

It is not a weakly prime, because it can be changed into another prime (72380039) 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, 36190044 + 36190045.

It is an arithmetic number, because the mean of its divisors is an integer number (36190045).

Almost surely, 2^72380089 is an apocalyptic number.

It is an amenable number.

72380089 is a deficient number, since it is larger than the sum of its proper divisors (1).

72380089 is an equidigital number, since it uses as much as digits as its factorization.

72380089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 72380089 is about 8507.6488526502. The cubic root of 72380089 is about 416.7475329623.

The spelling of 72380089 in words is "seventy-two million, three hundred eighty thousand, eighty-nine".