84041321 has 12 divisors (see below), whose sum is σ = 105283332. Its totient is φ = 66493728.

The previous prime is 84041317. The next prime is 84041329. The reversal of 84041321 is 12314048.

It can be written as a sum of positive squares in 2 ways, for example, as 27415696 + 56625625 = 5236^2 + 7525^2 .

It is not a de Polignac number, because 84041321 - 2² = 84041317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84041329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65330 + ... + 66603.

It is an arithmetic number, because the mean of its divisors is an integer number (8773611).

Almost surely, 2^84041321 is an apocalyptic number.

It is an amenable number.

84041321 is a deficient number, since it is larger than the sum of its proper divisors (21242011).

84041321 is a wasteful number, since it uses less digits than its factorization.

84041321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131960 (or 131953 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 84041321 is about 9167.4053581152. The cubic root of 84041321 is about 438.0237141654.

Adding to 84041321 its reverse (12314048), we get a palindrome (96355369).

The spelling of 84041321 in words is "eighty-four million, forty-one thousand, three hundred twenty-one".