87999996 has 96 divisors (see below), whose sum is σ = 241920000. Its totient is φ = 24380928.

The previous prime is 87999971. The next prime is 87999997. The reversal of 87999996 is 69999978.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87999997) 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 31 ways as a sum of consecutive naturals, for example, 590530 + ... + 590678.

It is an arithmetic number, because the mean of its divisors is an integer number (2520000).

Almost surely, 2^87999996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87999996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120960000).

87999996 is an abundant number, since it is smaller than the sum of its proper divisors (153920004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87999996 is a wasteful number, since it uses less digits than its factorization.

87999996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 329 counting only the distinct ones).

The product of its digits is 19840464, while the sum is 66.

The square root of 87999996 is about 9380.8313064461. The cubic root of 87999996 is about 444.7960113745.

The spelling of 87999996 in words is "eighty-seven million, nine hundred ninety-nine thousand, nine hundred ninety-six".