84999587 has 4 divisors (see below), whose sum is σ = 85163256. Its totient is φ = 84835920.

The previous prime is 84999557. The next prime is 84999599. The reversal of 84999587 is 78599948.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84999587 - 2¹⁶ = 84934051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84999527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81053 + ... + 82094.

It is an arithmetic number, because the mean of its divisors is an integer number (21290814).

Almost surely, 2^84999587 is an apocalyptic number.

84999587 is a deficient number, since it is larger than the sum of its proper divisors (163669).

84999587 is a wasteful number, since it uses less digits than its factorization.

84999587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163668.

The product of its digits is 6531840, while the sum is 59.

The square root of 84999587 is about 9219.5220591959. The cubic root of 84999587 is about 439.6822551007.

The spelling of 84999587 in words is "eighty-four million, nine hundred ninety-nine thousand, five hundred eighty-seven".