84438158 has 16 divisors (see below), whose sum is σ = 146081760. Its totient is φ = 35855136.

The previous prime is 84438149. The next prime is 84438173. The reversal of 84438158 is 85183448.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 26141 + ... + 29192.

It is an arithmetic number, because the mean of its divisors is an integer number (9130110).

Almost surely, 2^84438158 is an apocalyptic number.

84438158 is a deficient number, since it is larger than the sum of its proper divisors (61643602).

84438158 is a wasteful number, since it uses less digits than its factorization.

84438158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55451.

The product of its digits is 122880, while the sum is 41.

The square root of 84438158 is about 9189.0237784000. The cubic root of 84438158 is about 438.7120705409.

The spelling of 84438158 in words is "eighty-four million, four hundred thirty-eight thousand, one hundred fifty-eight".