84458121 has 48 divisors (see below), whose sum is σ = 130999680. Its totient is φ = 48294400.

The previous prime is 84458111. The next prime is 84458183. The reversal of 84458121 is 12185448.

It is not a de Polignac number, because 84458121 - 2¹⁰ = 84457097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84458111) 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 47 ways as a sum of consecutive naturals, for example, 747361 + ... + 747473.

It is an arithmetic number, because the mean of its divisors is an integer number (2729160).

Almost surely, 2^84458121 is an apocalyptic number.

It is an amenable number.

84458121 is a deficient number, since it is larger than the sum of its proper divisors (46541559).

84458121 is a wasteful number, since it uses less digits than its factorization.

84458121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 227 counting only the distinct ones).

The product of its digits is 10240, while the sum is 33.

The square root of 84458121 is about 9190.1099558166. The cubic root of 84458121 is about 438.7466414788.

The spelling of 84458121 in words is "eighty-four million, four hundred fifty-eight thousand, one hundred twenty-one".