5820811 has 4 divisors (see below), whose sum is σ = 5962824. Its totient is φ = 5678800.

The previous prime is 5820797. The next prime is 5820823. The reversal of 5820811 is 1180285.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5820811 - 2⁹ = 5820299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5820011) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 70945 + ... + 71026.

It is an arithmetic number, because the mean of its divisors is an integer number (1490706).

Almost surely, 2^5820811 is an apocalyptic number.

5820811 is a deficient number, since it is larger than the sum of its proper divisors (142013).

5820811 is a wasteful number, since it uses less digits than its factorization.

5820811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142012.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 5820811 is about 2412.6356956656. The cubic root of 5820811 is about 179.8848131358.

The spelling of 5820811 in words is "five million, eight hundred twenty thousand, eight hundred eleven".