7899316087 has 12 divisors (see below), whose sum is σ = 8552312776. Its totient is φ = 7252842240.

The previous prime is 7899316081. The next prime is 7899316099. The reversal of 7899316087 is 7806139987.

It is not a de Polignac number, because 7899316087 - 2³ = 7899316079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7899316081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4654023 + ... + 4655719.

Almost surely, 2^7899316087 is an apocalyptic number.

7899316087 is a deficient number, since it is larger than the sum of its proper divisors (652996689).

7899316087 is an equidigital number, since it uses as much as digits as its factorization.

7899316087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3618 (or 1921 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 58.

The square root of 7899316087 is about 88878.0967786777. The cubic root of 7899316087 is about 1991.5742269389.

The spelling of 7899316087 in words is "seven billion, eight hundred ninety-nine million, three hundred sixteen thousand, eighty-seven".