9999760087 has 2 divisors, whose sum is σ = 9999760088. Its totient is φ = 9999760086.

The previous prime is 9999760051. The next prime is 9999760129. The reversal of 9999760087 is 7800679999.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9999760087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9999761087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999880043 + 4999880044.

It is an arithmetic number, because the mean of its divisors is an integer number (4999880044).

Almost surely, 2^9999760087 is an apocalyptic number.

9999760087 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999760087 is an equidigital number, since it uses as much as digits as its factorization.

9999760087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15431472, while the sum is 64.

The square root of 9999760087 is about 99998.8004278051. The cubic root of 9999760087 is about 2154.4174606644.

The spelling of 9999760087 in words is "nine billion, nine hundred ninety-nine million, seven hundred sixty thousand, eighty-seven".