5957981 has 2 divisors, whose sum is σ = 5957982. Its totient is φ = 5957980.

The previous prime is 5957971. The next prime is 5958047. The reversal of 5957981 is 1897595.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3118756 + 2839225 = 1766^2 + 1685^2 .

It is a cyclic number.

It is not a de Polignac number, because 5957981 - 2¹⁰ = 5956957 is a prime.

It is a super-2 number, since 2×5957981² = 70995075192722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5957911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2978990 + 2978991.

It is an arithmetic number, because the mean of its divisors is an integer number (2978991).

Almost surely, 2^5957981 is an apocalyptic number.

It is an amenable number.

5957981 is a deficient number, since it is larger than the sum of its proper divisors (1).

5957981 is an equidigital number, since it uses as much as digits as its factorization.

5957981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 44.

The square root of 5957981 is about 2440.8975808092. The cubic root of 5957981 is about 181.2868785839.

The spelling of 5957981 in words is "five million, nine hundred fifty-seven thousand, nine hundred eighty-one".