84440070 has 176 divisors, whose sum is σ = 267844752. Its totient is φ = 18895680.

The previous prime is 84440029. The next prime is 84440093. The reversal of 84440070 is 7004448.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 87 ways as a sum of consecutive naturals, for example, 6495384 + ... + 6495396.

Almost surely, 2^84440070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84440070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133922376).

84440070 is an abundant number, since it is smaller than the sum of its proper divisors (183404682).

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

84440070 is a wasteful number, since it uses less digits than its factorization.

84440070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 84440070 is about 9189.1278149779. The cubic root of 84440070 is about 438.7153818840.

The spelling of 84440070 in words is "eighty-four million, four hundred forty thousand, seventy".