7272247 has 4 divisors (see below), whose sum is σ = 7380856. Its totient is φ = 7163640.

The previous prime is 7272229. The next prime is 7272257. The reversal of 7272247 is 7422727.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7272247 - 2⁷ = 7272119 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 (7272217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54204 + ... + 54337.

It is an arithmetic number, because the mean of its divisors is an integer number (1845214).

Almost surely, 2^7272247 is an apocalyptic number.

7272247 is a deficient number, since it is larger than the sum of its proper divisors (108609).

7272247 is a wasteful number, since it uses less digits than its factorization.

7272247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108608.

The product of its digits is 10976, while the sum is 31.

The square root of 7272247 is about 2696.7104034360. The cubic root of 7272247 is about 193.7415963056.

The spelling of 7272247 in words is "seven million, two hundred seventy-two thousand, two hundred forty-seven".