84678330 has 64 divisors (see below), whose sum is σ = 223440768. Its totient is φ = 20367360.

The previous prime is 84678323. The next prime is 84678367. The reversal of 84678330 is 3387648.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44274 + ... + 46146.

It is an arithmetic number, because the mean of its divisors is an integer number (3491262).

Almost surely, 2^84678330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84678330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111720384).

84678330 is an abundant number, since it is smaller than the sum of its proper divisors (138762438).

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

84678330 is a wasteful number, since it uses less digits than its factorization.

84678330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 84678330 is about 9202.0829163837. The cubic root of 84678330 is about 439.1276275818.

The spelling of 84678330 in words is "eighty-four million, six hundred seventy-eight thousand, three hundred thirty".