87000317 has 2 divisors, whose sum is σ = 87000318. Its totient is φ = 87000316.

The previous prime is 87000313. The next prime is 87000341. The reversal of 87000317 is 71300078.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77334436 + 9665881 = 8794^2 + 3109^2 .

It is a cyclic number.

It is not a de Polignac number, because 87000317 - 2² = 87000313 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87000313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43500158 + 43500159.

It is an arithmetic number, because the mean of its divisors is an integer number (43500159).

Almost surely, 2^87000317 is an apocalyptic number.

It is an amenable number.

87000317 is a deficient number, since it is larger than the sum of its proper divisors (1).

87000317 is an equidigital number, since it uses as much as digits as its factorization.

87000317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 87000317 is about 9327.3960460570. The cubic root of 87000317 is about 443.1053003458.

The spelling of 87000317 in words is "eighty-seven million, three hundred seventeen", and thus it is an aban number.