84447036 has 60 divisors (see below), whose sum is σ = 223120128. Its totient is φ = 27848448.

The previous prime is 84447031. The next prime is 84447049. The reversal of 84447036 is 63074448.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84447031) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 30085 + ... + 32771.

Almost surely, 2^84447036 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 84447036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111560064).

84447036 is an abundant number, since it is smaller than the sum of its proper divisors (138673092).

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

84447036 is a wasteful number, since it uses less digits than its factorization.

84447036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800 (or 2789 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 84447036 is about 9189.5068420454. The cubic root of 84447036 is about 438.7274456957.

Adding to 84447036 its product of nonzero digits (64512), we get a palindrome (84511548).

The spelling of 84447036 in words is "eighty-four million, four hundred forty-seven thousand, thirty-six".