84860144 has 30 divisors (see below), whose sum is σ = 169922160. Its totient is φ = 41053920.

The previous prime is 84860131. The next prime is 84860147. The reversal of 84860144 is 44106848.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84860147) 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, 12617 + ... + 18135.

It is an arithmetic number, because the mean of its divisors is an integer number (5664072).

Almost surely, 2^84860144 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 84860144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84961080).

84860144 is an abundant number, since it is smaller than the sum of its proper divisors (85062016).

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

84860144 is a wasteful number, since it uses less digits than its factorization.

84860144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5589 (or 5552 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 84860144 is about 9211.9565782737. The cubic root of 84860144 is about 439.4416885583.

The spelling of 84860144 in words is "eighty-four million, eight hundred sixty thousand, one hundred forty-four".