3427843 has 2 divisors, whose sum is σ = 3427844. Its totient is φ = 3427842.

The previous prime is 3427819. The next prime is 3427849. The reversal of 3427843 is 3487243.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3427843 - 2⁵ = 3427811 is a prime.

3427843 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3427849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1713921 + 1713922.

It is an arithmetic number, because the mean of its divisors is an integer number (1713922).

Almost surely, 2^3427843 is an apocalyptic number.

3427843 is a deficient number, since it is larger than the sum of its proper divisors (1).

3427843 is an equidigital number, since it uses as much as digits as its factorization.

3427843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 31.

The square root of 3427843 is about 1851.4434909011. The cubic root of 3427843 is about 150.7788086417.

The spelling of 3427843 in words is "three million, four hundred twenty-seven thousand, eight hundred forty-three".