5821409 has 8 divisors (see below), whose sum is σ = 6381120. Its totient is φ = 5266800.

The previous prime is 5821393. The next prime is 5821423. The reversal of 5821409 is 9041285.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5821409 - 2⁴ = 5821393 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5821499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1364 + ... + 3674.

It is an arithmetic number, because the mean of its divisors is an integer number (797640).

Almost surely, 2^5821409 is an apocalyptic number.

It is an amenable number.

5821409 is a deficient number, since it is larger than the sum of its proper divisors (559711).

5821409 is a wasteful number, since it uses less digits than its factorization.

5821409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 5821409 is about 2412.7596233359. The cubic root of 5821409 is about 179.8909730698.

It can be divided in two parts, 582 and 1409, that added together give a palindrome (1991).

The spelling of 5821409 in words is "five million, eight hundred twenty-one thousand, four hundred nine".