5963981 has 2 divisors, whose sum is σ = 5963982. Its totient is φ = 5963980.

The previous prime is 5963939. The next prime is 5963989. The reversal of 5963981 is 1893695.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5597956 + 366025 = 2366^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 5963981 - 2¹⁴ = 5947597 is a prime.

It is a super-2 number, since 2×5963981² = 71138138736722, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5963989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2981990 + 2981991.

It is an arithmetic number, because the mean of its divisors is an integer number (2981991).

Almost surely, 2^5963981 is an apocalyptic number.

It is an amenable number.

5963981 is a deficient number, since it is larger than the sum of its proper divisors (1).

5963981 is an equidigital number, since it uses as much as digits as its factorization.

5963981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 41.

The square root of 5963981 is about 2442.1263276088. The cubic root of 5963981 is about 181.3477133054.

The spelling of 5963981 in words is "five million, nine hundred sixty-three thousand, nine hundred eighty-one".