87788 has 12 divisors (see below), whose sum is σ = 162792. Its totient is φ = 41280.

The previous prime is 87767. The next prime is 87793. The reversal of 87788 is 88778.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578 + ... + 713.

It is an arithmetic number, because the mean of its divisors is an integer number (13566).

2⁸⁷⁷⁸⁸ is an apocalyptic number.

It is an amenable number.

87788 is a deficient number, since it is larger than the sum of its proper divisors (75004).

87788 is a wasteful number, since it uses less digits than its factorization.

87788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312 (or 1310 counting only the distinct ones).

The product of its digits is 25088, while the sum is 38.

The square root of 87788 is about 296.2903980894. The cubic root of 87788 is about 44.4438546218.

Subtracting 87788 from its reverse (88778), we obtain a triangular number (990 = T₄₄).

The spelling of 87788 in words is "eighty-seven thousand, seven hundred eighty-eight".