87109996 has 12 divisors (see below), whose sum is σ = 154155960. Its totient is φ = 43065440.

The previous prime is 87109991. The next prime is 87110017. The reversal of 87109996 is 69990178.

It is not an unprimeable number, because it can be changed into a prime (87109991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121990 + ... + 122701.

It is an arithmetic number, because the mean of its divisors is an integer number (12846330).

Almost surely, 2^87109996 is an apocalyptic number.

It is an amenable number.

87109996 is a deficient number, since it is larger than the sum of its proper divisors (67045964).

87109996 is a wasteful number, since it uses less digits than its factorization.

87109996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244784 (or 244782 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 49.

The square root of 87109996 is about 9333.2735950469. The cubic root of 87109996 is about 443.2914258664.

The spelling of 87109996 in words is "eighty-seven million, one hundred nine thousand, nine hundred ninety-six".