7873385 has 16 divisors (see below), whose sum is σ = 10296720. Its totient is φ = 5744640.

The previous prime is 7873379. The next prime is 7873387. The reversal of 7873385 is 5833787.

7873385 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 2601769 + 5271616 = 1613^2 + 2296^2 .

It is not a de Polignac number, because 7873385 - 2⁶ = 7873321 is a prime.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7873387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5105 + ... + 6465.

It is an arithmetic number, because the mean of its divisors is an integer number (643545).

Almost surely, 2^7873385 is an apocalyptic number.

It is an amenable number.

7873385 is a deficient number, since it is larger than the sum of its proper divisors (2423335).

7873385 is a wasteful number, since it uses less digits than its factorization.

7873385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468.

The product of its digits is 141120, while the sum is 41.

The square root of 7873385 is about 2805.9552740555. The cubic root of 7873385 is about 198.9392590896.

The spelling of 7873385 in words is "seven million, eight hundred seventy-three thousand, three hundred eighty-five".