84844290 has 64 divisors (see below), whose sum is σ = 210200832. Its totient is φ = 21907200.

The previous prime is 84844261. The next prime is 84844321. The reversal of 84844290 is 9244848.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129604 + ... + 130256.

It is an arithmetic number, because the mean of its divisors is an integer number (3284388).

Almost surely, 2^84844290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84844290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105100416).

84844290 is an abundant number, since it is smaller than the sum of its proper divisors (125356542).

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

84844290 is a wasteful number, since it uses less digits than its factorization.

84844290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795.

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 84844290 is about 9211.0960259895. The cubic root of 84844290 is about 439.4143206165.

The spelling of 84844290 in words is "eighty-four million, eight hundred forty-four thousand, two hundred ninety".