87787855 has 16 divisors (see below), whose sum is σ = 107251200. Its totient is φ = 68970528.

The previous prime is 87787841. The next prime is 87787867. The reversal of 87787855 is 55878778.

It is a cyclic number.

It is not a de Polignac number, because 87787855 - 2⁵ = 87787823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87787796 and 87787805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82054 + ... + 83116.

It is an arithmetic number, because the mean of its divisors is an integer number (6703200).

Almost surely, 2^87787855 is an apocalyptic number.

87787855 is a deficient number, since it is larger than the sum of its proper divisors (19463345).

87787855 is a wasteful number, since it uses less digits than its factorization.

87787855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350.

The product of its digits is 4390400, while the sum is 55.

The square root of 87787855 is about 9369.5173301510. The cubic root of 87787855 is about 444.4383015239.

The spelling of 87787855 in words is "eighty-seven million, seven hundred eighty-seven thousand, eight hundred fifty-five".