87317798 has 12 divisors (see below), whose sum is σ = 136920588. Its totient is φ = 41760180.

The previous prime is 87317777. The next prime is 87317801. The reversal of 87317798 is 89771378.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40208 + ... + 42323.

It is an arithmetic number, because the mean of its divisors is an integer number (11410049).

Almost surely, 2^87317798 is an apocalyptic number.

87317798 is a deficient number, since it is larger than the sum of its proper divisors (49602790).

87317798 is a wasteful number, since it uses less digits than its factorization.

87317798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82579 (or 82556 counting only the distinct ones).

The product of its digits is 592704, while the sum is 50.

The square root of 87317798 is about 9344.3992851333. The cubic root of 87317798 is about 443.6436383846.

The spelling of 87317798 in words is "eighty-seven million, three hundred seventeen thousand, seven hundred ninety-eight".