84144534 has 16 divisors (see below), whose sum is σ = 175606272. Its totient is φ = 26828648.

The previous prime is 84144461. The next prime is 84144539. The reversal of 84144534 is 43544148.

It is a junction number, because it is equal to n+sod(n) for n = 84144495 and 84144504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84144539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304734 + ... + 305009.

It is an arithmetic number, because the mean of its divisors is an integer number (10975392).

Almost surely, 2^84144534 is an apocalyptic number.

84144534 is an abundant number, since it is smaller than the sum of its proper divisors (91461738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84144534 is a wasteful number, since it uses less digits than its factorization.

84144534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609771.

The product of its digits is 30720, while the sum is 33.

The square root of 84144534 is about 9173.0329771565. The cubic root of 84144534 is about 438.2029563366.

The spelling of 84144534 in words is "eighty-four million, one hundred forty-four thousand, five hundred thirty-four".