72247703 has 8 divisors (see below), whose sum is σ = 79145616. Its totient is φ = 65404800.

The previous prime is 72247691. The next prime is 72247711. The reversal of 72247703 is 30774227.

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 72247703 - 2⁴ = 72247687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72247703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72247723) 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, 10976 + ... + 16277.

It is an arithmetic number, because the mean of its divisors is an integer number (9893202).

Almost surely, 2^72247703 is an apocalyptic number.

72247703 is a deficient number, since it is larger than the sum of its proper divisors (6897913).

72247703 is a wasteful number, since it uses less digits than its factorization.

72247703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27505.

The product of its (nonzero) digits is 16464, while the sum is 32.

The square root of 72247703 is about 8499.8648812790. The cubic root of 72247703 is about 416.4932954096.

The spelling of 72247703 in words is "seventy-two million, two hundred forty-seven thousand, seven hundred three".