87801808 has 20 divisors (see below), whose sum is σ = 170801568. Its totient is φ = 43724000.

The previous prime is 87801803. The next prime is 87801809. The reversal of 87801808 is 80810878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87801803) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6916 + ... + 14947.

Almost surely, 2^87801808 is an apocalyptic number.

It is an amenable number.

87801808 is a deficient number, since it is larger than the sum of its proper divisors (82999760).

87801808 is a wasteful number, since it uses less digits than its factorization.

87801808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22122 (or 22116 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 40.

The square root of 87801808 is about 9370.2618960198. The cubic root of 87801808 is about 444.4618466149.

The spelling of 87801808 in words is "eighty-seven million, eight hundred one thousand, eight hundred eight".