84026988 has 144 divisors (see below), whose sum is σ = 239855616. Its totient is φ = 24675840.

The previous prime is 84026983. The next prime is 84027043. The reversal of 84026988 is 88962048.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (84026983) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 815745 + ... + 815847.

It is an arithmetic number, because the mean of its divisors is an integer number (1665664).

Almost surely, 2^84026988 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 84026988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119927808).

84026988 is an abundant number, since it is smaller than the sum of its proper divisors (155828628).

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

84026988 is a wasteful number, since it uses less digits than its factorization.

84026988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 84026988 is about 9166.6235877776. The cubic root of 84026988 is about 437.9988115311.

The spelling of 84026988 in words is "eighty-four million, twenty-six thousand, nine hundred eighty-eight".