3431305 has 12 divisors (see below), whose sum is σ = 4347972. Its totient is φ = 2599200.

The previous prime is 3431287. The next prime is 3431317. The reversal of 3431305 is 5031343.

3431305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 698896 + 2732409 = 836^2 + 1653^2 .

It is not a de Polignac number, because 3431305 - 2¹⁷ = 3300233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 855 + ... + 2755.

It is an arithmetic number, because the mean of its divisors is an integer number (362331).

Almost surely, 2^3431305 is an apocalyptic number.

It is an amenable number.

3431305 is a deficient number, since it is larger than the sum of its proper divisors (916667).

3431305 is a wasteful number, since it uses less digits than its factorization.

3431305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944 (or 1925 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 3431305 is about 1852.3782011242. The cubic root of 3431305 is about 150.8295519810.

Adding to 3431305 its reverse (5031343), we get a palindrome (8462648).

The spelling of 3431305 in words is "three million, four hundred thirty-one thousand, three hundred five".