84044920 has 16 divisors (see below), whose sum is σ = 189101160. Its totient is φ = 33617952.

The previous prime is 84044903. The next prime is 84044927. The reversal of 84044920 is 2944048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84044927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050522 + ... + 1050601.

Almost surely, 2^84044920 is an apocalyptic number.

It is an amenable number.

84044920 is an abundant number, since it is smaller than the sum of its proper divisors (105056240).

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

84044920 is a wasteful number, since it uses less digits than its factorization.

84044920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101134 (or 2101130 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 84044920 is about 9167.6016492865. The cubic root of 84044920 is about 438.0299667438.

Adding to 84044920 its reverse (2944048), we get a palindrome (86988968).

The spelling of 84044920 in words is "eighty-four million, forty-four thousand, nine hundred twenty".