72719303 has 4 divisors (see below), whose sum is σ = 72862680. Its totient is φ = 72575928.

The previous prime is 72719299. The next prime is 72719323. The reversal of 72719303 is 30391727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30391727 = 2549 ⋅11923.

It is a cyclic number.

It is not a de Polignac number, because 72719303 - 2² = 72719299 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72719303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72719323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70925 + ... + 71942.

It is an arithmetic number, because the mean of its divisors is an integer number (18215670).

Almost surely, 2^72719303 is an apocalyptic number.

72719303 is a deficient number, since it is larger than the sum of its proper divisors (143377).

72719303 is a wasteful number, since it uses less digits than its factorization.

72719303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143376.

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 72719303 is about 8527.5613747425. The cubic root of 72719303 is about 417.3975567075.

The spelling of 72719303 in words is "seventy-two million, seven hundred nineteen thousand, three hundred three".