5821445 has 12 divisors (see below), whose sum is σ = 8126604. Its totient is φ = 3991680.

The previous prime is 5821441. The next prime is 5821447. The reversal of 5821445 is 5441285.

It can be written as a sum of positive squares in 2 ways, for example, as 2660161 + 3161284 = 1631^2 + 1778^2 .

It is not a de Polignac number, because 5821445 - 2² = 5821441 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5821441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11636 + ... + 12125.

It is an arithmetic number, because the mean of its divisors is an integer number (677217).

Almost surely, 2^5821445 is an apocalyptic number.

It is an amenable number.

5821445 is a deficient number, since it is larger than the sum of its proper divisors (2305159).

5821445 is a wasteful number, since it uses less digits than its factorization.

5821445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23780 (or 23773 counting only the distinct ones).

The product of its digits is 6400, while the sum is 29.

The square root of 5821445 is about 2412.7670836614. The cubic root of 5821445 is about 179.8913438885.

The spelling of 5821445 in words is "five million, eight hundred twenty-one thousand, four hundred forty-five".