84427884 has 18 divisors (see below), whose sum is σ = 213415020. Its totient is φ = 28142616.

The previous prime is 84427873. The next prime is 84427901. The reversal of 84427884 is 48872448.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1172574 + ... + 1172645.

It is an arithmetic number, because the mean of its divisors is an integer number (11856390).

Almost surely, 2^84427884 is an apocalyptic number.

It is an amenable number.

84427884 is an abundant number, since it is smaller than the sum of its proper divisors (128987136).

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

84427884 is a wasteful number, since it uses less digits than its factorization.

84427884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345229 (or 2345224 counting only the distinct ones).

The product of its digits is 458752, while the sum is 45.

The square root of 84427884 is about 9188.4647248602. The cubic root of 84427884 is about 438.6942764111.

The spelling of 84427884 in words is "eighty-four million, four hundred twenty-seven thousand, eight hundred eighty-four".