3957449 has 6 divisors (see below), whose sum is σ = 4137546. Its totient is φ = 3784880.

The previous prime is 3957439. The next prime is 3957451. The reversal of 3957449 is 9447593.

3957449 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 only one way, i.e., 3822025 + 135424 = 1955^2 + 368^2 .

It is not a de Polignac number, because 3957449 - 2⁴ = 3957433 is a prime.

It is a super-2 number, since 2×3957449² = 31322805175202, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3957439) 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 in 5 ways as a sum of consecutive naturals, for example, 3212 + ... + 4269.

It is an arithmetic number, because the mean of its divisors is an integer number (689591).

Almost surely, 2^3957449 is an apocalyptic number.

It is an amenable number.

3957449 is a deficient number, since it is larger than the sum of its proper divisors (180097).

3957449 is an equidigital number, since it uses as much as digits as its factorization.

3957449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7527 (or 7504 counting only the distinct ones).

The product of its digits is 136080, while the sum is 41.

The square root of 3957449 is about 1989.3338080875. Note that the first 3 decimals coincide. The cubic root of 3957449 is about 158.1752182095.

The spelling of 3957449 in words is "three million, nine hundred fifty-seven thousand, four hundred forty-nine".