4343981 has 2 divisors, whose sum is σ = 4343982. Its totient is φ = 4343980.

The previous prime is 4343957. The next prime is 4344007. The reversal of 4343981 is 1893434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4268356 + 75625 = 2066^2 + 275^2 .

It is a cyclic number.

It is not a de Polignac number, because 4343981 - 2⁶ = 4343917 is a prime.

It is a super-2 number, since 2×4343981² = 37740341856722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4343921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2171990 + 2171991.

It is an arithmetic number, because the mean of its divisors is an integer number (2171991).

Almost surely, 2^4343981 is an apocalyptic number.

It is an amenable number.

4343981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4343981 is an equidigital number, since it uses as much as digits as its factorization.

4343981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 4343981 is about 2084.2219171672. The cubic root of 4343981 is about 163.1658642601.

The spelling of 4343981 in words is "four million, three hundred forty-three thousand, nine hundred eighty-one".