5839981 has 4 divisors (see below), whose sum is σ = 6674272. Its totient is φ = 5005692.

The previous prime is 5839979. The next prime is 5840039. The reversal of 5839981 is 1899385.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1899385 = 5 ⋅379877.

It is a cyclic number.

It is not a de Polignac number, because 5839981 - 2¹ = 5839979 is a prime.

It is a super-2 number, since 2×5839981² = 68210756160722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5839901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417135 + ... + 417148.

It is an arithmetic number, because the mean of its divisors is an integer number (1668568).

Almost surely, 2^5839981 is an apocalyptic number.

It is an amenable number.

5839981 is a deficient number, since it is larger than the sum of its proper divisors (834291).

5839981 is an equidigital number, since it uses as much as digits as its factorization.

5839981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834290.

The product of its digits is 77760, while the sum is 43.

The square root of 5839981 is about 2416.6052635877. The cubic root of 5839981 is about 180.0820716270.

The spelling of 5839981 in words is "five million, eight hundred thirty-nine thousand, nine hundred eighty-one".