5943781 has 2 divisors, whose sum is σ = 5943782. Its totient is φ = 5943780.

The previous prime is 5943757. The next prime is 5943793. The reversal of 5943781 is 1873495.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5832225 + 111556 = 2415^2 + 334^2 .

It is a cyclic number.

It is not a de Polignac number, because 5943781 - 2⁷ = 5943653 is a prime.

It is a super-2 number, since 2×5943781² = 70657065151922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5943781.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5943701) 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 as a sum of consecutive naturals, namely, 2971890 + 2971891.

It is an arithmetic number, because the mean of its divisors is an integer number (2971891).

Almost surely, 2^5943781 is an apocalyptic number.

It is an amenable number.

5943781 is a deficient number, since it is larger than the sum of its proper divisors (1).

5943781 is an equidigital number, since it uses as much as digits as its factorization.

5943781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 37.

The square root of 5943781 is about 2437.9870795392. The cubic root of 5943781 is about 181.1427401849.

It can be divided in two parts, 5943 and 781, that added together give a square (6724 = 82²).

The spelling of 5943781 in words is "five million, nine hundred forty-three thousand, seven hundred eighty-one".