7272823 has 4 divisors (see below), whose sum is σ = 7523640. Its totient is φ = 7022008.

The previous prime is 7272809. The next prime is 7272829. The reversal of 7272823 is 3282727.

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

It is a cyclic number.

It is not a de Polignac number, because 7272823 - 2⁵ = 7272791 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 (7272829) 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, 125365 + ... + 125422.

It is an arithmetic number, because the mean of its divisors is an integer number (1880910).

Almost surely, 2^7272823 is an apocalyptic number.

7272823 is a deficient number, since it is larger than the sum of its proper divisors (250817).

7272823 is a wasteful number, since it uses less digits than its factorization.

7272823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250816.

The product of its digits is 9408, while the sum is 31.

The square root of 7272823 is about 2696.8171981059. The cubic root of 7272823 is about 193.7467112865.

The spelling of 7272823 in words is "seven million, two hundred seventy-two thousand, eight hundred twenty-three".