87668017 has 4 divisors (see below), whose sum is σ = 87851520. Its totient is φ = 87484516.

The previous prime is 87668011. The next prime is 87668027. The reversal of 87668017 is 71086678.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87668017 - 2¹¹ = 87665969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87668011) 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, 91033 + ... + 91990.

It is an arithmetic number, because the mean of its divisors is an integer number (21962880).

Almost surely, 2^87668017 is an apocalyptic number.

It is an amenable number.

87668017 is a deficient number, since it is larger than the sum of its proper divisors (183503).

87668017 is a wasteful number, since it uses less digits than its factorization.

87668017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183502.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 87668017 is about 9363.1200462239. The cubic root of 87668017 is about 444.2359772173.

The spelling of 87668017 in words is "eighty-seven million, six hundred sixty-eight thousand, seventeen".