84763878 has 32 divisors (see below), whose sum is σ = 177465600. Its totient is φ = 26939616.

The previous prime is 84763859. The next prime is 84763909. The reversal of 84763878 is 87836748.

It is a self number, because there is not a number n which added to its sum of digits gives 84763878.

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, 52893 + ... + 54471.

It is an arithmetic number, because the mean of its divisors is an integer number (5545800).

Almost surely, 2^84763878 is an apocalyptic number.

84763878 is an abundant number, since it is smaller than the sum of its proper divisors (92701722).

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

84763878 is a wasteful number, since it uses less digits than its factorization.

84763878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1996.

The product of its digits is 1806336, while the sum is 51.

The square root of 84763878 is about 9206.7300384013. The cubic root of 84763878 is about 439.2754570072.

The spelling of 84763878 in words is "eighty-four million, seven hundred sixty-three thousand, eight hundred seventy-eight".