84518070 has 128 divisors (see below), whose sum is σ = 253338624. Its totient is φ = 17570304.

The previous prime is 84518053. The next prime is 84518081. The reversal of 84518070 is 7081548.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 226404 + ... + 226776.

It is an arithmetic number, because the mean of its divisors is an integer number (1979208).

Almost surely, 2^84518070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84518070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126669312).

84518070 is an abundant number, since it is smaller than the sum of its proper divisors (168820554).

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

84518070 is a wasteful number, since it uses less digits than its factorization.

84518070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 84518070 is about 9193.3709813104. The cubic root of 84518070 is about 438.8504254660.

It can be divided in two parts, 845 and 18070, that added together give a triangular number (18915 = T₁₉₄).

The spelling of 84518070 in words is "eighty-four million, five hundred eighteen thousand, seventy".