8212890713 has 2 divisors, whose sum is σ = 8212890714. Its totient is φ = 8212890712.

The previous prime is 8212890691. The next prime is 8212890727. The reversal of 8212890713 is 3170982128.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8181564304 + 31326409 = 90452^2 + 5597^2 .

It is a cyclic number.

It is not a de Polignac number, because 8212890713 - 2¹⁰ = 8212889689 is a prime.

It is not a weakly prime, because it can be changed into another prime (8212890743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4106445356 + 4106445357.

It is an arithmetic number, because the mean of its divisors is an integer number (4106445357).

Almost surely, 2^8212890713 is an apocalyptic number.

It is an amenable number.

8212890713 is a deficient number, since it is larger than the sum of its proper divisors (1).

8212890713 is an equidigital number, since it uses as much as digits as its factorization.

8212890713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 8212890713 is about 90625.0004855172. Note that the first 3 decimals coincide. The cubic root of 8212890713 is about 2017.5858091909.

The spelling of 8212890713 in words is "eight billion, two hundred twelve million, eight hundred ninety thousand, seven hundred thirteen".