84587994 has 48 divisors (see below), whose sum is σ = 190146528. Its totient is φ = 27154656.

The previous prime is 84587959. The next prime is 84588013. The reversal of 84587994 is 49978548.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 84587994.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70669 + ... + 71855.

It is an arithmetic number, because the mean of its divisors is an integer number (3961386).

Almost surely, 2^84587994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84587994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95073264).

84587994 is an abundant number, since it is smaller than the sum of its proper divisors (105558534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84587994 is a wasteful number, since it uses less digits than its factorization.

84587994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339 (or 1336 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 84587994 is about 9197.1731526595. The cubic root of 84587994 is about 438.9714162338.

The spelling of 84587994 in words is "eighty-four million, five hundred eighty-seven thousand, nine hundred ninety-four".