84244581 has 6 divisors (see below), whose sum is σ = 121686630. Its totient is φ = 56163048.

The previous prime is 84244549. The next prime is 84244603. The reversal of 84244581 is 18544248.

It can be written as a sum of positive squares in only one way, i.e., 50893956 + 33350625 = 7134^2 + 5775^2 .

It is not a de Polignac number, because 84244581 - 2⁵ = 84244549 is a prime.

It is a super-2 number, since 2×84244581² = 14194298855731122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84244481) 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, 4680246 + ... + 4680263.

It is an arithmetic number, because the mean of its divisors is an integer number (20281105).

Almost surely, 2^84244581 is an apocalyptic number.

It is an amenable number.

84244581 is a deficient number, since it is larger than the sum of its proper divisors (37442049).

84244581 is a wasteful number, since it uses less digits than its factorization.

84244581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9360515 (or 9360512 counting only the distinct ones).

The product of its digits is 40960, while the sum is 36.

The square root of 84244581 is about 9178.4846788563. The cubic root of 84244581 is about 438.3765605114.

The spelling of 84244581 in words is "eighty-four million, two hundred forty-four thousand, five hundred eighty-one".