72732065 has 8 divisors (see below), whose sum is σ = 99746880. Its totient is φ = 49873392.

The previous prime is 72732031. The next prime is 72732089. The reversal of 72732065 is 56023727.

It is a happy number.

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 72732065 - 2¹⁰ = 72731041 is a prime.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1038995 + ... + 1039064.

It is an arithmetic number, because the mean of its divisors is an integer number (12468360).

Almost surely, 2^72732065 is an apocalyptic number.

It is an amenable number.

72732065 is a deficient number, since it is larger than the sum of its proper divisors (27014815).

72732065 is a wasteful number, since it uses less digits than its factorization.

72732065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078071.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 72732065 is about 8528.3096214901. The cubic root of 72732065 is about 417.4219725816.

The spelling of 72732065 in words is "seventy-two million, seven hundred thirty-two thousand, sixty-five".