72305599 has 8 divisors (see below), whose sum is σ = 74016000. Its totient is φ = 70602456.

The previous prime is 72305593. The next prime is 72305603. The reversal of 72305599 is 99550327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72305599 - 2⁵ = 72305567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72305593) 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 in 7 ways as a sum of consecutive naturals, for example, 21912 + ... + 24994.

It is an arithmetic number, because the mean of its divisors is an integer number (9252000).

Almost surely, 2^72305599 is an apocalyptic number.

72305599 is a deficient number, since it is larger than the sum of its proper divisors (1710401).

72305599 is a wasteful number, since it uses less digits than its factorization.

72305599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629.

The product of its (nonzero) digits is 85050, while the sum is 40.

The square root of 72305599 is about 8503.2699004559. The cubic root of 72305599 is about 416.6045185885.

The spelling of 72305599 in words is "seventy-two million, three hundred five thousand, five hundred ninety-nine".