5821881 has 12 divisors (see below), whose sum is σ = 8406288. Its totient is φ = 3582384.

The previous prime is 5821859. The next prime is 5821889. The reversal of 5821881 is 1881285.

It is not a de Polignac number, because 5821881 - 2⁶ = 5821817 is a prime.

It is a super-2 number, since 2×5821881² = 67788596756322, which contains 22 as substring.

It is a Curzon number.

5821881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5821889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5235 + ... + 6248.

It is an arithmetic number, because the mean of its divisors is an integer number (700524).

Almost surely, 2^5821881 is an apocalyptic number.

It is an amenable number.

5821881 is a deficient number, since it is larger than the sum of its proper divisors (2584407).

5821881 is a wasteful number, since it uses less digits than its factorization.

5821881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11512 (or 11499 counting only the distinct ones).

The product of its digits is 5120, while the sum is 33.

The square root of 5821881 is about 2412.8574346612. The cubic root of 5821881 is about 179.8958347934.

The spelling of 5821881 in words is "five million, eight hundred twenty-one thousand, eight hundred eighty-one".