84213544 has 16 divisors (see below), whose sum is σ = 158908500. Its totient is φ = 41837952.

The previous prime is 84213539. The next prime is 84213551. The reversal of 84213544 is 44531248.

It can be written as a sum of positive squares in 2 ways, for example, as 81685444 + 2528100 = 9038^2 + 1590^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 32269 + ... + 34780.

Almost surely, 2^84213544 is an apocalyptic number.

It is an amenable number.

84213544 is a deficient number, since it is larger than the sum of its proper divisors (74694956).

84213544 is a wasteful number, since it uses less digits than its factorization.

84213544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67212 (or 67208 counting only the distinct ones).

The product of its digits is 15360, while the sum is 31.

The square root of 84213544 is about 9176.7937756059. The cubic root of 84213544 is about 438.3227190087.

The spelling of 84213544 in words is "eighty-four million, two hundred thirteen thousand, five hundred forty-four".