84878934 has 32 divisors (see below), whose sum is σ = 197303040. Its totient is φ = 23839392.

The previous prime is 84878921. The next prime is 84878951. The reversal of 84878934 is 43987848.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14649 + ... + 19604.

It is an arithmetic number, because the mean of its divisors is an integer number (6165720).

Almost surely, 2^84878934 is an apocalyptic number.

84878934 is an abundant number, since it is smaller than the sum of its proper divisors (112424106).

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

84878934 is a wasteful number, since it uses less digits than its factorization.

84878934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34324.

The product of its digits is 1548288, while the sum is 51.

The square root of 84878934 is about 9212.9763920245. The cubic root of 84878934 is about 439.4741203516.

The spelling of 84878934 in words is "eighty-four million, eight hundred seventy-eight thousand, nine hundred thirty-four".