84944881 has 6 divisors (see below), whose sum is σ = 98813490. Its totient is φ = 72809856.

The previous prime is 84944863. The next prime is 84944887. The reversal of 84944881 is 18844948.

It can be written as a sum of positive squares in only one way, i.e., 60590656 + 24354225 = 7784^2 + 4935^2 .

It is not a de Polignac number, because 84944881 - 2⁷ = 84944753 is a prime.

It is a super-2 number, since 2×84944881² = 14431265616208322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84944887) 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, 866736 + ... + 866833.

It is an arithmetic number, because the mean of its divisors is an integer number (16468915).

Almost surely, 2^84944881 is an apocalyptic number.

It is an amenable number.

84944881 is a deficient number, since it is larger than the sum of its proper divisors (13868609).

84944881 is a wasteful number, since it uses less digits than its factorization.

84944881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733583 (or 1733576 counting only the distinct ones).

The product of its digits is 294912, while the sum is 46.

The square root of 84944881 is about 9216.5547250586. The cubic root of 84944881 is about 439.5879078990.

The spelling of 84944881 in words is "eighty-four million, nine hundred forty-four thousand, eight hundred eighty-one".