9885290687 has 2 divisors, whose sum is σ = 9885290688. Its totient is φ = 9885290686.

The previous prime is 9885290677. The next prime is 9885290689. The reversal of 9885290687 is 7860925889.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9885290687 - 2²⁴ = 9868513471 is a prime.

Together with 9885290689, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9885290689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4942645343 + 4942645344.

It is an arithmetic number, because the mean of its divisors is an integer number (4942645344).

Almost surely, 2^9885290687 is an apocalyptic number.

9885290687 is a deficient number, since it is larger than the sum of its proper divisors (1).

9885290687 is an equidigital number, since it uses as much as digits as its factorization.

9885290687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17418240, while the sum is 62.

The square root of 9885290687 is about 99424.7991549392. The cubic root of 9885290687 is about 2146.1651986023.

The spelling of 9885290687 in words is "nine billion, eight hundred eighty-five million, two hundred ninety thousand, six hundred eighty-seven".