87768655 has 8 divisors (see below), whose sum is σ = 113424192. Its totient is φ = 64813728.

The previous prime is 87768647. The next prime is 87768673. The reversal of 87768655 is 55686778.

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 87768655 - 2³ = 87768647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 675079 + ... + 675208.

It is an arithmetic number, because the mean of its divisors is an integer number (14178024).

Almost surely, 2^87768655 is an apocalyptic number.

87768655 is a deficient number, since it is larger than the sum of its proper divisors (25655537).

87768655 is a wasteful number, since it uses less digits than its factorization.

87768655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350305.

The product of its digits is 2822400, while the sum is 52.

The square root of 87768655 is about 9368.4926749184. The cubic root of 87768655 is about 444.4058982658.

The spelling of 87768655 in words is "eighty-seven million, seven hundred sixty-eight thousand, six hundred fifty-five".