87084617 has 2 divisors, whose sum is σ = 87084618. Its totient is φ = 87084616.

The previous prime is 87084583. The next prime is 87084653. The reversal of 87084617 is 71648078.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53860921 + 33223696 = 7339^2 + 5764^2 .

It is a cyclic number.

It is not a de Polignac number, because 87084617 - 2¹⁶ = 87019081 is a prime.

It is not a weakly prime, because it can be changed into another prime (87084677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43542308 + 43542309.

It is an arithmetic number, because the mean of its divisors is an integer number (43542309).

Almost surely, 2^87084617 is an apocalyptic number.

It is an amenable number.

87084617 is a deficient number, since it is larger than the sum of its proper divisors (1).

87084617 is an equidigital number, since it uses as much as digits as its factorization.

87084617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 87084617 is about 9331.9138980168. The cubic root of 87084617 is about 443.2483715429.

The spelling of 87084617 in words is "eighty-seven million, eighty-four thousand, six hundred seventeen".