84878700 has 72 divisors (see below), whose sum is σ = 258525120. Its totient is φ = 21441600.

The previous prime is 84878657. The next prime is 84878701. The reversal of 84878700 is 787848.

It is not an unprimeable number, because it can be changed into a prime (84878701) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1746 + ... + 13145.

Almost surely, 2^84878700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84878700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129262560).

84878700 is an abundant number, since it is smaller than the sum of its proper divisors (173646420).

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

84878700 is a wasteful number, since it uses less digits than its factorization.

84878700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14927 (or 14920 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 42.

The square root of 84878700 is about 9212.9636925367. The cubic root of 84878700 is about 439.4737164939.

The spelling of 84878700 in words is "eighty-four million, eight hundred seventy-eight thousand, seven hundred".