84998587 has 4 divisors (see below), whose sum is σ = 85823920. Its totient is φ = 84173256.

The previous prime is 84998581. The next prime is 84998597. The reversal of 84998587 is 78589948.

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 84998587 - 2³ = 84998579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84998581) 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, 412512 + ... + 412717.

It is an arithmetic number, because the mean of its divisors is an integer number (21455980).

Almost surely, 2^84998587 is an apocalyptic number.

84998587 is a deficient number, since it is larger than the sum of its proper divisors (825333).

84998587 is a wasteful number, since it uses less digits than its factorization.

84998587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825332.

The product of its digits is 5806080, while the sum is 58.

The square root of 84998587 is about 9219.4678262902. The cubic root of 84998587 is about 439.6805308414.

The spelling of 84998587 in words is "eighty-four million, nine hundred ninety-eight thousand, five hundred eighty-seven".