84085587 has 32 divisors (see below), whose sum is σ = 136468800. Its totient is φ = 50932224.

The previous prime is 84085559. The next prime is 84085601. The reversal of 84085587 is 78558048.

It is not a de Polignac number, because 84085587 - 2⁶ = 84085523 is a prime.

It is a super-2 number, since 2×84085587² = 14140771882269138, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84085487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10153 + ... + 16469.

It is an arithmetic number, because the mean of its divisors is an integer number (4264650).

Almost surely, 2^84085587 is an apocalyptic number.

84085587 is a gapful number since it is divisible by the number (87) formed by its first and last digit.

84085587 is a deficient number, since it is larger than the sum of its proper divisors (52383213).

84085587 is a wasteful number, since it uses less digits than its factorization.

84085587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6372 (or 6366 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The square root of 84085587 is about 9169.8193548183. The cubic root of 84085587 is about 438.1006055256.

The spelling of 84085587 in words is "eighty-four million, eighty-five thousand, five hundred eighty-seven".