84334620 has 96 divisors (see below), whose sum is σ = 253108800. Its totient is φ = 20905984.

The previous prime is 84334619. The next prime is 84334661. The reversal of 84334620 is 2643348.

It is a super-2 number, since 2×84334620² = 14224656261088800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 90316 + ... + 91244.

It is an arithmetic number, because the mean of its divisors is an integer number (2636550).

Almost surely, 2^84334620 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 84334620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126554400).

84334620 is an abundant number, since it is smaller than the sum of its proper divisors (168774180).

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

84334620 is a wasteful number, since it uses less digits than its factorization.

84334620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 84334620 is about 9183.3882635986. The cubic root of 84334620 is about 438.5326810716.

Adding to 84334620 its reverse (2643348), we get a palindrome (86977968).

The spelling of 84334620 in words is "eighty-four million, three hundred thirty-four thousand, six hundred twenty".