87817084 has 12 divisors (see below), whose sum is σ = 154461384. Its totient is φ = 43685264.

The previous prime is 87817073. The next prime is 87817091. The reversal of 87817084 is 48071878.

It is a self number, because there is not a number n which added to its sum of digits gives 87817084.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54934 + ... + 56509.

It is an arithmetic number, because the mean of its divisors is an integer number (12871782).

Almost surely, 2^87817084 is an apocalyptic number.

It is an amenable number.

87817084 is a deficient number, since it is larger than the sum of its proper divisors (66644300).

87817084 is a wasteful number, since it uses less digits than its factorization.

87817084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111644 (or 111642 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 43.

The square root of 87817084 is about 9371.0769925340. The cubic root of 87817084 is about 444.4876213516.

The spelling of 87817084 in words is "eighty-seven million, eight hundred seventeen thousand, eighty-four".