84448170 has 80 divisors (see below), whose sum is σ = 229029768. Its totient is φ = 22325760.

The previous prime is 84448139. The next prime is 84448201. The reversal of 84448170 is 7184448.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (84448139) and next prime (84448201).

It can be written as a sum of positive squares in 4 ways, for example, as 42107121 + 42341049 = 6489^2 + 6507^2 .

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 39 ways as a sum of consecutive naturals, for example, 110590 + ... + 111350.

Almost surely, 2^84448170 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84448170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114514884).

84448170 is an abundant number, since it is smaller than the sum of its proper divisors (144581598).

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

84448170 is a wasteful number, since it uses less digits than its factorization.

84448170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917 (or 908 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 84448170 is about 9189.5685426466. The cubic root of 84448170 is about 438.7294095093.

The spelling of 84448170 in words is "eighty-four million, four hundred forty-eight thousand, one hundred seventy".