87116936 has 8 divisors (see below), whose sum is σ = 163344270. Its totient is φ = 43558464.

The previous prime is 87116933. The next prime is 87116941. The reversal of 87116936 is 63961178.

It can be written as a sum of positive squares in only one way, i.e., 75516100 + 11600836 = 8690^2 + 3406^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 87116893 and 87116902.

It is not an unprimeable number, because it can be changed into a prime (87116933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5444801 + ... + 5444816.

Almost surely, 2^87116936 is an apocalyptic number.

It is an amenable number.

87116936 is a deficient number, since it is larger than the sum of its proper divisors (76227334).

87116936 is a wasteful number, since it uses less digits than its factorization.

87116936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10889623 (or 10889619 counting only the distinct ones).

The product of its digits is 54432, while the sum is 41.

The square root of 87116936 is about 9333.6453757361. The cubic root of 87116936 is about 443.3031978059.

The spelling of 87116936 in words is "eighty-seven million, one hundred sixteen thousand, nine hundred thirty-six".