84423808 has 64 divisors (see below), whose sum is σ = 195595200. Its totient is φ = 35546112.

The previous prime is 84423803. The next prime is 84423809. The reversal of 84423808 is 80832448.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (84423803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52066 + ... + 53662.

It is an arithmetic number, because the mean of its divisors is an integer number (3056175).

Almost surely, 2^84423808 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 84423808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97797600).

84423808 is an abundant number, since it is smaller than the sum of its proper divisors (111171392).

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

84423808 is a wasteful number, since it uses less digits than its factorization.

84423808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677 (or 1665 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 37.

The square root of 84423808 is about 9188.2429223437. The cubic root of 84423808 is about 438.6872165529.

The spelling of 84423808 in words is "eighty-four million, four hundred twenty-three thousand, eight hundred eight".