820200084 has 24 divisors (see below), whose sum is σ = 2087782368. Its totient is φ = 248545440.

The previous prime is 820200067. The next prime is 820200133. The reversal of 820200084 is 480002028.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3106687 + ... + 3106950.

It is an arithmetic number, because the mean of its divisors is an integer number (86990932).

Almost surely, 2^820200084 is an apocalyptic number.

It is an amenable number.

820200084 is an abundant number, since it is smaller than the sum of its proper divisors (1267582284).

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

820200084 is a wasteful number, since it uses less digits than its factorization.

820200084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6213655 (or 6213653 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 820200084 is about 28639.1355316462. The cubic root of 820200084 is about 936.0662848448.

The spelling of 820200084 in words is "eight hundred twenty million, two hundred thousand, eighty-four".