87996899 has 8 divisors (see below), whose sum is σ = 89094720. Its totient is φ = 86904576.

The previous prime is 87996893. The next prime is 87996949. The reversal of 87996899 is 99869978.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87996899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87996893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37334 + ... + 39620.

It is an arithmetic number, because the mean of its divisors is an integer number (11136840).

Almost surely, 2^87996899 is an apocalyptic number.

87996899 is a deficient number, since it is larger than the sum of its proper divisors (1097821).

87996899 is a wasteful number, since it uses less digits than its factorization.

87996899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2749.

The product of its digits is 17635968, while the sum is 65.

The square root of 87996899 is about 9380.6662343354. Note that the first 3 decimals coincide. The cubic root of 87996899 is about 444.7907933841.

The spelling of 87996899 in words is "eighty-seven million, nine hundred ninety-six thousand, eight hundred ninety-nine".