84235878 has 12 divisors (see below), whose sum is σ = 182511108. Its totient is φ = 28078620.

The previous prime is 84235849. The next prime is 84235889. The reversal of 84235878 is 87853248.

It is a congruent number.

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, 2339868 + ... + 2339903.

It is an arithmetic number, because the mean of its divisors is an integer number (15209259).

Almost surely, 2^84235878 is an apocalyptic number.

84235878 is an abundant number, since it is smaller than the sum of its proper divisors (98275230).

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

84235878 is a wasteful number, since it uses less digits than its factorization.

84235878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4679779 (or 4679776 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 84235878 is about 9178.0105687453. The cubic root of 84235878 is about 438.3614642977.

The spelling of 84235878 in words is "eighty-four million, two hundred thirty-five thousand, eight hundred seventy-eight".