87768808 has 8 divisors (see below), whose sum is σ = 164566530. Its totient is φ = 43884400.

The previous prime is 87768803. The next prime is 87768829. The reversal of 87768808 is 80886778.

It can be written as a sum of positive squares in only one way, i.e., 71944324 + 15824484 = 8482^2 + 3978^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (87768803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5485543 + ... + 5485558.

Almost surely, 2^87768808 is an apocalyptic number.

It is an amenable number.

87768808 is a deficient number, since it is larger than the sum of its proper divisors (76797722).

87768808 is a wasteful number, since it uses less digits than its factorization.

87768808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10971107 (or 10971103 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 52.

The square root of 87768808 is about 9368.5008405828. The cubic root of 87768808 is about 444.4061564980.

The spelling of 87768808 in words is "eighty-seven million, seven hundred sixty-eight thousand, eight hundred eight".