84825090 has 128 divisors (see below), whose sum is σ = 265720320. Its totient is φ = 18849024.

The previous prime is 84825089. The next prime is 84825109. The reversal of 84825090 is 9052848.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69324 + ... + 70536.

It is an arithmetic number, because the mean of its divisors is an integer number (2075940).

Almost surely, 2^84825090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84825090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132860160).

84825090 is an abundant number, since it is smaller than the sum of its proper divisors (180895230).

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

84825090 is a wasteful number, since it uses less digits than its factorization.

84825090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273 (or 1267 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 84825090 is about 9210.0537457715. The cubic root of 84825090 is about 439.3811720827.

The spelling of 84825090 in words is "eighty-four million, eight hundred twenty-five thousand, ninety".