72730011 has 8 divisors (see below), whose sum is σ = 97360704. Its totient is φ = 48293000.

The previous prime is 72730001. The next prime is 72730019. The reversal of 72730011 is 11003727.

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 72730011 - 2⁹ = 72729499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72730011.

It is not an unprimeable number, because it can be changed into a prime (72730019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47541 + ... + 49046.

It is an arithmetic number, because the mean of its divisors is an integer number (12170088).

Almost surely, 2^72730011 is an apocalyptic number.

72730011 is a deficient number, since it is larger than the sum of its proper divisors (24630693).

72730011 is a wasteful number, since it uses less digits than its factorization.

72730011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96841.

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 72730011 is about 8528.1891981827. The cubic root of 72730011 is about 417.4180431235.

Adding to 72730011 its reverse (11003727), we get a palindrome (83733738).

The spelling of 72730011 in words is "seventy-two million, seven hundred thirty thousand, eleven".