87668855 has 8 divisors (see below), whose sum is σ = 105315552. Its totient is φ = 70059808.

The previous prime is 87668849. The next prime is 87668857. The reversal of 87668855 is 55886678.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87668855 - 2²⁰ = 86620279 is a prime.

It is a super-2 number, since 2×87668855² = 15371656274022050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87668797 and 87668806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87668857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4004 + ... + 13833.

It is an arithmetic number, because the mean of its divisors is an integer number (13164444).

Almost surely, 2^87668855 is an apocalyptic number.

87668855 is a deficient number, since it is larger than the sum of its proper divisors (17646697).

87668855 is a wasteful number, since it uses less digits than its factorization.

87668855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18825.

The product of its digits is 3225600, while the sum is 53.

The square root of 87668855 is about 9363.1647961573. The cubic root of 87668855 is about 444.2373926653.

The spelling of 87668855 in words is "eighty-seven million, six hundred sixty-eight thousand, eight hundred fifty-five".