87317648 has 20 divisors (see below), whose sum is σ = 184558128. Its totient is φ = 39689760.

The previous prime is 87317647. The next prime is 87317653. The reversal of 87317648 is 84671378.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 87317599 and 87317608.

It is not an unprimeable number, because it can be changed into a prime (87317641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247886 + ... + 248237.

Almost surely, 2^87317648 is an apocalyptic number.

87317648 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

87317648 is an abundant number, since it is smaller than the sum of its proper divisors (97240480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87317648 is a wasteful number, since it uses less digits than its factorization.

87317648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496142 (or 496136 counting only the distinct ones).

The product of its digits is 225792, while the sum is 44.

The square root of 87317648 is about 9344.3912589317. The cubic root of 87317648 is about 443.6433843448.

The spelling of 87317648 in words is "eighty-seven million, three hundred seventeen thousand, six hundred forty-eight".