7084640853 has 12 divisors (see below), whose sum is σ = 10234424460. Its totient is φ = 4722607296.

The previous prime is 7084640851. The next prime is 7084640861. The reversal of 7084640853 is 3580464807.

It can be written as a sum of positive squares in 2 ways, for example, as 719473329 + 6365167524 = 26823^2 + 79782^2 .

It is not a de Polignac number, because 7084640853 - 2¹ = 7084640851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7084640799 and 7084640808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7084640851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66543 + ... + 136371.

It is an arithmetic number, because the mean of its divisors is an integer number (852868705).

Almost surely, 2^7084640853 is an apocalyptic number.

It is an amenable number.

7084640853 is a deficient number, since it is larger than the sum of its proper divisors (3149783607).

7084640853 is a wasteful number, since it uses less digits than its factorization.

7084640853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81108 (or 81105 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 7084640853 is about 84170.3086188948. The cubic root of 7084640853 is about 1920.6104154510.

The spelling of 7084640853 in words is "seven billion, eighty-four million, six hundred forty thousand, eight hundred fifty-three".