84180852 has 72 divisors (see below), whose sum is σ = 251596800. Its totient is φ = 23220288.

The previous prime is 84180797. The next prime is 84180869. The reversal of 84180852 is 25808148.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1549 + ... + 13067.

It is an arithmetic number, because the mean of its divisors is an integer number (3494400).

Almost surely, 2^84180852 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 84180852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125798400).

84180852 is an abundant number, since it is smaller than the sum of its proper divisors (167415948).

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

84180852 is a wasteful number, since it uses less digits than its factorization.

84180852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11565 (or 11560 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 84180852 is about 9175.0123705639. The cubic root of 84180852 is about 438.2659921833.

The spelling of 84180852 in words is "eighty-four million, one hundred eighty thousand, eight hundred fifty-two".