84444992 has 42 divisors (see below), whose sum is σ = 173276514. Its totient is φ = 40830720.

The previous prime is 84444977. The next prime is 84445033. The reversal of 84444992 is 29944448.

It can be written as a sum of positive squares in only one way, i.e., 84198976 + 246016 = 9176^2 + 496^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60818 + ... + 62190.

Almost surely, 2^84444992 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 84444992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86638257).

84444992 is an abundant number, since it is smaller than the sum of its proper divisors (88831522).

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

84444992 is a wasteful number, since it uses less digits than its factorization.

84444992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447 (or 1406 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The square root of 84444992 is about 9189.3956275699. The cubic root of 84444992 is about 438.7239059381.

The spelling of 84444992 in words is "eighty-four million, four hundred forty-four thousand, nine hundred ninety-two".