84434805 has 160 divisors (see below), whose sum is σ = 195148800. Its totient is φ = 33965568.

The previous prime is 84434789. The next prime is 84434827. The reversal of 84434805 is 50843448.

It is not a de Polignac number, because 84434805 - 2⁴ = 84434789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84434805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1068756 + ... + 1068834.

It is an arithmetic number, because the mean of its divisors is an integer number (1219680).

Almost surely, 2^84434805 is an apocalyptic number.

It is an amenable number.

84434805 is an abundant number, since it is smaller than the sum of its proper divisors (110713995).

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

84434805 is a wasteful number, since it uses less digits than its factorization.

84434805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 84434805 is about 9188.8413306575. The cubic root of 84434805 is about 438.7062634466.

The spelling of 84434805 in words is "eighty-four million, four hundred thirty-four thousand, eight hundred five".