7320385 has 8 divisors (see below), whose sum is σ = 8809920. Its totient is φ = 5839344.

The previous prime is 7320359. The next prime is 7320403. The reversal of 7320385 is 5830237.

7320385 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7320385 - 2¹⁵ = 7287617 is a prime.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37 + ... + 3826.

It is an arithmetic number, because the mean of its divisors is an integer number (1101240).

Almost surely, 2^7320385 is an apocalyptic number.

It is an amenable number.

7320385 is a deficient number, since it is larger than the sum of its proper divisors (1489535).

7320385 is a wasteful number, since it uses less digits than its factorization.

7320385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4247.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 7320385 is about 2705.6210008055. The cubic root of 7320385 is about 194.1681416831.

The spelling of 7320385 in words is "seven million, three hundred twenty thousand, three hundred eighty-five".