7308985 has 4 divisors (see below), whose sum is σ = 8770788. Its totient is φ = 5847184.

The previous prime is 7308971. The next prime is 7308989. The reversal of 7308985 is 5898037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5898037 = 19 ⋅310423.

It can be written as a sum of positive squares in 2 ways, for example, as 4239481 + 3069504 = 2059^2 + 1752^2 .

It is a cyclic number.

It is not a de Polignac number, because 7308985 - 2⁹ = 7308473 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7308989) 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, 730894 + ... + 730903.

It is an arithmetic number, because the mean of its divisors is an integer number (2192697).

Almost surely, 2^7308985 is an apocalyptic number.

It is an amenable number.

7308985 is a deficient number, since it is larger than the sum of its proper divisors (1461803).

7308985 is a wasteful number, since it uses less digits than its factorization.

7308985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461802.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 7308985 is about 2703.5134547474. The cubic root of 7308985 is about 194.0672969487.

The spelling of 7308985 in words is "seven million, three hundred eight thousand, nine hundred eighty-five".