8280340687 has 2 divisors, whose sum is σ = 8280340688. Its totient is φ = 8280340686.

The previous prime is 8280340669. The next prime is 8280340723. The reversal of 8280340687 is 7860430828.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8280340687 - 2¹⁹ = 8279816399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8280340787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4140170343 + 4140170344.

It is an arithmetic number, because the mean of its divisors is an integer number (4140170344).

Almost surely, 2^8280340687 is an apocalyptic number.

8280340687 is a deficient number, since it is larger than the sum of its proper divisors (1).

8280340687 is an equidigital number, since it uses as much as digits as its factorization.

8280340687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 516096, while the sum is 46.

The square root of 8280340687 is about 90996.3773289904. The cubic root of 8280340687 is about 2023.0940303937.

The spelling of 8280340687 in words is "eight billion, two hundred eighty million, three hundred forty thousand, six hundred eighty-seven".