84381201 has 24 divisors (see below), whose sum is σ = 126147840. Its totient is φ = 54310176.

The previous prime is 84381139. The next prime is 84381229. The reversal of 84381201 is 10218348.

84381201 is a `hidden beast` number, since 84 + 381 + 201 = 666.

It is not a de Polignac number, because 84381201 - 2¹¹ = 84379153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84381301) 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 23 ways as a sum of consecutive naturals, for example, 45376 + ... + 47198.

It is an arithmetic number, because the mean of its divisors is an integer number (5256160).

Almost surely, 2^84381201 is an apocalyptic number.

It is an amenable number.

84381201 is a deficient number, since it is larger than the sum of its proper divisors (41766639).

84381201 is a wasteful number, since it uses less digits than its factorization.

84381201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005 (or 2002 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 84381201 is about 9185.9240689220. The cubic root of 84381201 is about 438.6134052592.

Adding to 84381201 its reverse (10218348), we get a palindrome (94599549).

The spelling of 84381201 in words is "eighty-four million, three hundred eighty-one thousand, two hundred one".