8313280889 has 4 divisors (see below), whose sum is σ = 8324263524. Its totient is φ = 8302298256.

The previous prime is 8313280883. The next prime is 8313280951. The reversal of 8313280889 is 9880823138.

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 4424511289 + 3888769600 = 66517^2 + 62360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8313280889 is a prime.

It is a super-2 number, since 2×8313280889² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8313280883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5490182 + ... + 5491695.

It is an arithmetic number, because the mean of its divisors is an integer number (2081065881).

Almost surely, 2^8313280889 is an apocalyptic number.

It is an amenable number.

8313280889 is a deficient number, since it is larger than the sum of its proper divisors (10982635).

8313280889 is a wasteful number, since it uses less digits than its factorization.

8313280889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10982634.

The product of its (nonzero) digits is 663552, while the sum is 50.

The square root of 8313280889 is about 91177.1950051108. The cubic root of 8313280889 is about 2025.7731855352.

The spelling of 8313280889 in words is "eight billion, three hundred thirteen million, two hundred eighty thousand, eight hundred eighty-nine".