72303753 has 4 divisors (see below), whose sum is σ = 96405008. Its totient is φ = 48202500.

The previous prime is 72303709. The next prime is 72303821. The reversal of 72303753 is 35730327.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 72303753 - 2²¹ = 70206601 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 72303753.

It is not an unprimeable number, because it can be changed into a prime (72301753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12050623 + ... + 12050628.

It is an arithmetic number, because the mean of its divisors is an integer number (24101252).

Almost surely, 2^72303753 is an apocalyptic number.

It is an amenable number.

72303753 is a deficient number, since it is larger than the sum of its proper divisors (24101255).

72303753 is a wasteful number, since it uses less digits than its factorization.

72303753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24101254.

The product of its (nonzero) digits is 13230, while the sum is 30.

The square root of 72303753 is about 8503.1613532850. The cubic root of 72303753 is about 416.6009731808.

The spelling of 72303753 in words is "seventy-two million, three hundred three thousand, seven hundred fifty-three".