72310303 has 8 divisors (see below), whose sum is σ = 77939568. Its totient is φ = 66690624.

The previous prime is 72310267. The next prime is 72310309. The reversal of 72310303 is 30301327.

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

It is not a de Polignac number, because 72310303 - 2⁹ = 72309791 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 (72310309) 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, 24651 + ... + 27427.

It is an arithmetic number, because the mean of its divisors is an integer number (9742446).

Almost surely, 2^72310303 is an apocalyptic number.

72310303 is a deficient number, since it is larger than the sum of its proper divisors (5629265).

72310303 is a wasteful number, since it uses less digits than its factorization.

72310303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4793.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 72310303 is about 8503.5464954335. The cubic root of 72310303 is about 416.6135527675.

It can be divided in two parts, 723 and 10303, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 72310303 in words is "seventy-two million, three hundred ten thousand, three hundred three".