87316568 has 8 divisors (see below), whose sum is σ = 163718580. Its totient is φ = 43658280.

The previous prime is 87316561. The next prime is 87316583. The reversal of 87316568 is 86561378.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87316561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5457278 + ... + 5457293.

Almost surely, 2^87316568 is an apocalyptic number.

It is an amenable number.

87316568 is a deficient number, since it is larger than the sum of its proper divisors (76402012).

87316568 is a wasteful number, since it uses less digits than its factorization.

87316568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10914577 (or 10914573 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 87316568 is about 9344.3334700769. Note that the first 3 decimals coincide. The cubic root of 87316568 is about 443.6415552498.

The spelling of 87316568 in words is "eighty-seven million, three hundred sixteen thousand, five hundred sixty-eight".