84365556 has 72 divisors (see below), whose sum is σ = 218971200. Its totient is φ = 25259520.

The previous prime is 84365531. The next prime is 84365557. The reversal of 84365556 is 65556348.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84365557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140545 + ... + 141143.

Almost surely, 2^84365556 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 84365556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109485600).

84365556 is an abundant number, since it is smaller than the sum of its proper divisors (134605644).

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

84365556 is a wasteful number, since it uses less digits than its factorization.

84365556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725 (or 712 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The square root of 84365556 is about 9185.0724548040. The cubic root of 84365556 is about 438.5862960185.

The spelling of 84365556 in words is "eighty-four million, three hundred sixty-five thousand, five hundred fifty-six".