84445775 has 18 divisors (see below), whose sum is σ = 106098120. Its totient is φ = 66673920.

The previous prime is 84445771. The next prime is 84445843. The reversal of 84445775 is 57754448.

It is not a de Polignac number, because 84445775 - 2² = 84445771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84445771) 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 17 ways as a sum of consecutive naturals, for example, 235046 + ... + 235404.

It is an arithmetic number, because the mean of its divisors is an integer number (5894340).

Almost surely, 2^84445775 is an apocalyptic number.

84445775 is a deficient number, since it is larger than the sum of its proper divisors (21652345).

84445775 is an equidigital number, since it uses as much as digits as its factorization.

84445775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563 (or 461 counting only the distinct ones).

The product of its digits is 627200, while the sum is 44.

The square root of 84445775 is about 9189.4382309258. The cubic root of 84445775 is about 438.7252619283.

The spelling of 84445775 in words is "eighty-four million, four hundred forty-five thousand, seven hundred seventy-five".