87028317 has 16 divisors (see below), whose sum is σ = 129864000. Its totient is φ = 57598992.

The previous prime is 87028313. The next prime is 87028327. The reversal of 87028317 is 71382078.

It is not a de Polignac number, because 87028317 - 2² = 87028313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87028313) 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 15 ways as a sum of consecutive naturals, for example, 7842 + ... + 15347.

It is an arithmetic number, because the mean of its divisors is an integer number (8116500).

Almost surely, 2^87028317 is an apocalyptic number.

It is an amenable number.

87028317 is a deficient number, since it is larger than the sum of its proper divisors (42835683).

87028317 is a wasteful number, since it uses less digits than its factorization.

87028317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23337 (or 23331 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 87028317 is about 9328.8968801247. The cubic root of 87028317 is about 443.1528312746.

The spelling of 87028317 in words is "eighty-seven million, twenty-eight thousand, three hundred seventeen".