84585287 has 2 divisors, whose sum is σ = 84585288. Its totient is φ = 84585286.

The previous prime is 84585269. The next prime is 84585301. The reversal of 84585287 is 78258548.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84585287 - 2⁸ = 84585031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84585227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42292643 + 42292644.

It is an arithmetic number, because the mean of its divisors is an integer number (42292644).

Almost surely, 2^84585287 is an apocalyptic number.

84585287 is a deficient number, since it is larger than the sum of its proper divisors (1).

84585287 is an equidigital number, since it uses as much as digits as its factorization.

84585287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 716800, while the sum is 47.

The square root of 84585287 is about 9197.0259866981. The cubic root of 84585287 is about 438.9667335035.

The spelling of 84585287 in words is "eighty-four million, five hundred eighty-five thousand, two hundred eighty-seven".