3943673 has 2 divisors, whose sum is σ = 3943674. Its totient is φ = 3943672.

The previous prime is 3943663. The next prime is 3943691. The reversal of 3943673 is 3763493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2166784 + 1776889 = 1472^2 + 1333^2 .

It is a cyclic number.

It is not a de Polignac number, because 3943673 - 2¹⁶ = 3878137 is a prime.

It is not a weakly prime, because it can be changed into another prime (3943613) 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, 1971836 + 1971837.

It is an arithmetic number, because the mean of its divisors is an integer number (1971837).

Almost surely, 2^3943673 is an apocalyptic number.

It is an amenable number.

3943673 is a deficient number, since it is larger than the sum of its proper divisors (1).

3943673 is an equidigital number, since it uses as much as digits as its factorization.

3943673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 35.

The square root of 3943673 is about 1985.8683239329. The cubic root of 3943673 is about 157.9914672527.

The spelling of 3943673 in words is "three million, nine hundred forty-three thousand, six hundred seventy-three".