7320245 has 4 divisors (see below), whose sum is σ = 8784300. Its totient is φ = 5856192.

The previous prime is 7320241. The next prime is 7320259. The reversal of 7320245 is 5420237.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5420237 = 1063 ⋅5099.

It can be written as a sum of positive squares in 2 ways, for example, as 1214404 + 6105841 = 1102^2 + 2471^2 .

It is a cyclic number.

It is not a de Polignac number, because 7320245 - 2² = 7320241 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7320245.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 732020 + ... + 732029.

It is an arithmetic number, because the mean of its divisors is an integer number (2196075).

Almost surely, 2^7320245 is an apocalyptic number.

It is an amenable number.

7320245 is a deficient number, since it is larger than the sum of its proper divisors (1464055).

7320245 is a wasteful number, since it uses less digits than its factorization.

7320245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464054.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 7320245 is about 2705.5951286177. The cubic root of 7320245 is about 194.1669038742.

The spelling of 7320245 in words is "seven million, three hundred twenty thousand, two hundred forty-five".