84782808 has 128 divisors (see below), whose sum is σ = 272160000. Its totient is φ = 24168960.

The previous prime is 84782801. The next prime is 84782821. The reversal of 84782808 is 80828748.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84782801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39343 + ... + 41441.

It is an arithmetic number, because the mean of its divisors is an integer number (2126250).

Almost surely, 2^84782808 is an apocalyptic number.

84782808 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84782808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136080000).

84782808 is an abundant number, since it is smaller than the sum of its proper divisors (187377192).

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

84782808 is a wasteful number, since it uses less digits than its factorization.

84782808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142 (or 2132 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 45.

The square root of 84782808 is about 9207.7580333108. The cubic root of 84782808 is about 439.3081551551.

The spelling of 84782808 in words is "eighty-four million, seven hundred eighty-two thousand, eight hundred eight".