84210732 has 48 divisors (see below), whose sum is σ = 220802400. Its totient is φ = 27751680.

The previous prime is 84210713. The next prime is 84210743. The reversal of 84210732 is 23701248.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 84210696 and 84210705.

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 15 ways as a sum of consecutive naturals, for example, 5232 + ... + 13992.

It is an arithmetic number, because the mean of its divisors is an integer number (4600050).

Almost surely, 2^84210732 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 84210732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110401200).

84210732 is an abundant number, since it is smaller than the sum of its proper divisors (136591668).

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

84210732 is a wasteful number, since it uses less digits than its factorization.

84210732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8863 (or 8855 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 84210732 is about 9176.6405617742. The cubic root of 84210732 is about 438.3178402321.

The spelling of 84210732 in words is "eighty-four million, two hundred ten thousand, seven hundred thirty-two".