72288899 has 2 divisors, whose sum is σ = 72288900. Its totient is φ = 72288898.

The previous prime is 72288893. The next prime is 72288919. The reversal of 72288899 is 99888227.

It is a weak prime.

It is an emirp because it is prime and its reverse (99888227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72288899 - 2⁴ = 72288883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72288899.

It is not a weakly prime, because it can be changed into another prime (72288893) 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, 36144449 + 36144450.

It is an arithmetic number, because the mean of its divisors is an integer number (36144450).

Almost surely, 2^72288899 is an apocalyptic number.

72288899 is a deficient number, since it is larger than the sum of its proper divisors (1).

72288899 is an equidigital number, since it uses as much as digits as its factorization.

72288899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 53.

The square root of 72288899 is about 8502.2878685681. The cubic root of 72288899 is about 416.5724425517.

The spelling of 72288899 in words is "seventy-two million, two hundred eighty-eight thousand, eight hundred ninety-nine".