84443454 has 48 divisors (see below), whose sum is σ = 195026832. Its totient is φ = 26313984.

The previous prime is 84443449. The next prime is 84443497. The reversal of 84443454 is 45434448.

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, 49032 + ... + 50724.

It is an arithmetic number, because the mean of its divisors is an integer number (4063059).

Almost surely, 2^84443454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84443454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97513416).

84443454 is an abundant number, since it is smaller than the sum of its proper divisors (110583378).

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

84443454 is a wasteful number, since it uses less digits than its factorization.

84443454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881 (or 1878 counting only the distinct ones).

The product of its digits is 122880, while the sum is 36.

The square root of 84443454 is about 9189.3119437747. The cubic root of 84443454 is about 438.7212424232.

The spelling of 84443454 in words is "eighty-four million, four hundred forty-three thousand, four hundred fifty-four".