5821830 has 48 divisors (see below), whose sum is σ = 17301024. Its totient is φ = 1330560.

The previous prime is 5821817. The next prime is 5821841. The reversal of 5821830 is 381285.

It is a happy number.

5821830 is a `hidden beast` number, since 582 + 1 + 83 + 0 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5821794 and 5821803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3991 + ... + 5250.

It is an arithmetic number, because the mean of its divisors is an integer number (360438).

Almost surely, 2^5821830 is an apocalyptic number.

5821830 is an abundant number, since it is smaller than the sum of its proper divisors (11479194).

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

5821830 is a wasteful number, since it uses less digits than its factorization.

5821830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9261 (or 9258 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 5821830 is about 2412.8468662557. The cubic root of 5821830 is about 179.8953094927.

The spelling of 5821830 in words is "five million, eight hundred twenty-one thousand, eight hundred thirty".