3431243 has 2 divisors, whose sum is σ = 3431244. Its totient is φ = 3431242.

The previous prime is 3431237. The next prime is 3431261. The reversal of 3431243 is 3421343.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3431243 - 2⁶ = 3431179 is a prime.

It is not a weakly prime, because it can be changed into another prime (3431203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1715621 + 1715622.

It is an arithmetic number, because the mean of its divisors is an integer number (1715622).

Almost surely, 2^3431243 is an apocalyptic number.

3431243 is a deficient number, since it is larger than the sum of its proper divisors (1).

3431243 is an equidigital number, since it uses as much as digits as its factorization.

3431243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 20.

The square root of 3431243 is about 1852.3614658052. The cubic root of 3431243 is about 150.8286435328.

Adding to 3431243 its reverse (3421343), we get a palindrome (6852586).

The spelling of 3431243 in words is "three million, four hundred thirty-one thousand, two hundred forty-three".