84878 has 12 divisors (see below), whose sum is σ = 135072. Its totient is φ = 39960.

The previous prime is 84871. The next prime is 84913. The reversal of 84878 is 87848.

It is a super-3 number, since 3×84878³ = 1834453330812456, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2276 + ... + 2312.

It is an arithmetic number, because the mean of its divisors is an integer number (11256).

2⁸⁴⁸⁷⁸ is an apocalyptic number.

84878 is a deficient number, since it is larger than the sum of its proper divisors (50194).

84878 is a wasteful number, since it uses less digits than its factorization.

84878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 70 counting only the distinct ones).

The product of its digits is 14336, while the sum is 35.

The square root of 84878 is about 291.3382913384. The cubic root of 84878 is about 43.9472508368.

It can be divided in two parts, 8487 and 8, that multiplied together give a triangular number (67896 = T₃₆₈).

The spelling of 84878 in words is "eighty-four thousand, eight hundred seventy-eight".