84121444 has 12 divisors (see below), whose sum is σ = 160595568. Its totient is φ = 38237000.

The previous prime is 84121421. The next prime is 84121451. The reversal of 84121444 is 44412148.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955882 + ... + 955969.

It is an arithmetic number, because the mean of its divisors is an integer number (13382964).

Almost surely, 2^84121444 is an apocalyptic number.

It is an amenable number.

84121444 is a deficient number, since it is larger than the sum of its proper divisors (76474124).

84121444 is a wasteful number, since it uses less digits than its factorization.

84121444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911866 (or 1911864 counting only the distinct ones).

The product of its digits is 4096, while the sum is 28.

The square root of 84121444 is about 9171.7743103502. The cubic root of 84121444 is about 438.1628704216.

It can be divided in two parts, 8412144 and 4, that added together give a palindrome (8412148).

The spelling of 84121444 in words is "eighty-four million, one hundred twenty-one thousand, four hundred forty-four".