7320243 has 8 divisors (see below), whose sum is σ = 11154688. Its totient is φ = 4182984.

The previous prime is 7320241. The next prime is 7320259. The reversal of 7320243 is 3420237.

It is a happy number.

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

It is not a de Polignac number, because 7320243 - 2¹ = 7320241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 348583 = 7320243 / (7 + 3 + 2 + 0 + 2 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7320241) 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, 174271 + ... + 174312.

It is an arithmetic number, because the mean of its divisors is an integer number (1394336).

Almost surely, 2^7320243 is an apocalyptic number.

7320243 is a deficient number, since it is larger than the sum of its proper divisors (3834445).

7320243 is a wasteful number, since it uses less digits than its factorization.

7320243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348593.

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 7320243 is about 2705.5947590133. The cubic root of 7320243 is about 194.1668861911.

The spelling of 7320243 in words is "seven million, three hundred twenty thousand, two hundred forty-three".