3431849 has 2 divisors, whose sum is σ = 3431850. Its totient is φ = 3431848.

The previous prime is 3431821. The next prime is 3431851. The reversal of 3431849 is 9481343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3356224 + 75625 = 1832^2 + 275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3431849 is a prime.

Together with 3431851, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3431819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1715924 + 1715925.

It is an arithmetic number, because the mean of its divisors is an integer number (1715925).

Almost surely, 2^3431849 is an apocalyptic number.

It is an amenable number.

3431849 is a deficient number, since it is larger than the sum of its proper divisors (1).

3431849 is an equidigital number, since it uses as much as digits as its factorization.

3431849 is an evil number, because the sum of its binary digits is even.

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

The square root of 3431849 is about 1852.5250335690. The cubic root of 3431849 is about 150.8375224121.

The spelling of 3431849 in words is "three million, four hundred thirty-one thousand, eight hundred forty-nine".