87017071 has 2 divisors, whose sum is σ = 87017072. Its totient is φ = 87017070.

The previous prime is 87017039. The next prime is 87017137. The reversal of 87017071 is 17071078.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87017071 - 2⁵ = 87017039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87017011) 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 as a sum of consecutive naturals, namely, 43508535 + 43508536.

It is an arithmetic number, because the mean of its divisors is an integer number (43508536).

Almost surely, 2^87017071 is an apocalyptic number.

87017071 is a deficient number, since it is larger than the sum of its proper divisors (1).

87017071 is an equidigital number, since it uses as much as digits as its factorization.

87017071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2744, while the sum is 31.

The square root of 87017071 is about 9328.2941098574. The cubic root of 87017071 is about 443.1337420418.

The spelling of 87017071 in words is "eighty-seven million, seventeen thousand, seventy-one".