3449947 has 2 divisors, whose sum is σ = 3449948. Its totient is φ = 3449946.

The previous prime is 3449939. The next prime is 3449951. The reversal of 3449947 is 7499443.

3449947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3449947 - 2³ = 3449939 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3440947) by changing a digit.

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 as a sum of consecutive naturals, namely, 1724973 + 1724974.

It is an arithmetic number, because the mean of its divisors is an integer number (1724974).

Almost surely, 2^3449947 is an apocalyptic number.

3449947 is a deficient number, since it is larger than the sum of its proper divisors (1).

3449947 is an equidigital number, since it uses as much as digits as its factorization.

3449947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 3449947 is about 1857.4032949255. The cubic root of 3449947 is about 151.1022070197.

The spelling of 3449947 in words is "three million, four hundred forty-nine thousand, nine hundred forty-seven".