8273600813 has 4 divisors (see below), whose sum is σ = 8274122268. Its totient is φ = 8273079360.

The previous prime is 8273600807. The next prime is 8273600833. The reversal of 8273600813 is 3180063728.

It is a happy number.

8273600813 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2244004 + 8271356809 = 1498^2 + 90947^2 .

It is a cyclic number.

It is not a de Polignac number, because 8273600813 - 2¹⁸ = 8273338669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8273600833) 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, 236156 + ... + 268917.

It is an arithmetic number, because the mean of its divisors is an integer number (2068530567).

Almost surely, 2^8273600813 is an apocalyptic number.

It is an amenable number.

8273600813 is a deficient number, since it is larger than the sum of its proper divisors (521455).

8273600813 is a wasteful number, since it uses less digits than its factorization.

8273600813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521454.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 8273600813 is about 90959.3360408925. The cubic root of 8273600813 is about 2022.5449748815.

The spelling of 8273600813 in words is "eight billion, two hundred seventy-three million, six hundred thousand, eight hundred thirteen".