8990640713 has 2 divisors, whose sum is σ = 8990640714. Its totient is φ = 8990640712.

The previous prime is 8990640709. The next prime is 8990640773. The reversal of 8990640713 is 3170460998.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8947646464 + 42994249 = 94592^2 + 6557^2 .

It is a cyclic number.

It is not a de Polignac number, because 8990640713 - 2² = 8990640709 is a prime.

It is not a weakly prime, because it can be changed into another prime (8990640773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4495320356 + 4495320357.

It is an arithmetic number, because the mean of its divisors is an integer number (4495320357).

Almost surely, 2^8990640713 is an apocalyptic number.

It is an amenable number.

8990640713 is a deficient number, since it is larger than the sum of its proper divisors (1).

8990640713 is an equidigital number, since it uses as much as digits as its factorization.

8990640713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 8990640713 is about 94818.9892004761. The cubic root of 8990640713 is about 2079.3625321699.

The spelling of 8990640713 in words is "eight billion, nine hundred ninety million, six hundred forty thousand, seven hundred thirteen".