84531877 has 16 divisors (see below), whose sum is σ = 89953920. Its totient is φ = 79276032.

The previous prime is 84531869. The next prime is 84531913. The reversal of 84531877 is 77813548.

It is not a de Polignac number, because 84531877 - 2³ = 84531869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84531847) 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 15 ways as a sum of consecutive naturals, for example, 437893 + ... + 438085.

It is an arithmetic number, because the mean of its divisors is an integer number (5622120).

Almost surely, 2^84531877 is an apocalyptic number.

It is an amenable number.

84531877 is a deficient number, since it is larger than the sum of its proper divisors (5422043).

84531877 is a wasteful number, since it uses less digits than its factorization.

84531877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492.

The product of its digits is 188160, while the sum is 43.

The square root of 84531877 is about 9194.1218721529. The cubic root of 84531877 is about 438.8743212550.

The spelling of 84531877 in words is "eighty-four million, five hundred thirty-one thousand, eight hundred seventy-seven".