84813512 has 72 divisors (see below), whose sum is σ = 193854150. Its totient is φ = 34683264.

The previous prime is 84813497. The next prime is 84813541. The reversal of 84813512 is 21531848.

It can be written as a sum of positive squares in only one way, i.e., 54848836 + 29964676 = 7406^2 + 5474^2 .

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 17 ways as a sum of consecutive naturals, for example, 207164 + ... + 207572.

Almost surely, 2^84813512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84813512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96927075).

84813512 is an abundant number, since it is smaller than the sum of its proper divisors (109040638).

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

84813512 is a wasteful number, since it uses less digits than its factorization.

84813512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 441 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 84813512 is about 9209.4251720724. The cubic root of 84813512 is about 439.3611804085.

The spelling of 84813512 in words is "eighty-four million, eight hundred thirteen thousand, five hundred twelve".