84381888 has 56 divisors (see below), whose sum is σ = 235021120. Its totient is φ = 26645760.

The previous prime is 84381839. The next prime is 84381889. The reversal of 84381888 is 88818348.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (84381889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7918 + ... + 15213.

Almost surely, 2^84381888 is an apocalyptic number.

It is an amenable number.

84381888 is an abundant number, since it is smaller than the sum of its proper divisors (150639232).

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

84381888 is a wasteful number, since it uses less digits than its factorization.

84381888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23165 (or 23155 counting only the distinct ones).

The product of its digits is 393216, while the sum is 48.

The square root of 84381888 is about 9185.9614630152. The cubic root of 84381888 is about 438.6145955978.

The spelling of 84381888 in words is "eighty-four million, three hundred eighty-one thousand, eight hundred eighty-eight".