3954257 has 2 divisors, whose sum is σ = 3954258. Its totient is φ = 3954256.

The previous prime is 3954253. The next prime is 3954259. The reversal of 3954257 is 7524593.

3954257 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 can be written as a sum of positive squares in only one way, i.e., 2972176 + 982081 = 1724^2 + 991^2 .

It is an emirp because it is prime and its reverse (7524593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3954257 - 2² = 3954253 is a prime.

It is a super-2 number, since 2×3954257² = 31272296844098, which contains 22 as substring.

Together with 3954259, 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 (3954253) 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, 1977128 + 1977129.

It is an arithmetic number, because the mean of its divisors is an integer number (1977129).

Almost surely, 2^3954257 is an apocalyptic number.

It is an amenable number.

3954257 is a deficient number, since it is larger than the sum of its proper divisors (1).

3954257 is an equidigital number, since it uses as much as digits as its factorization.

3954257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 35.

The square root of 3954257 is about 1988.5313676178. The cubic root of 3954257 is about 158.1326797709.

The spelling of 3954257 in words is "three million, nine hundred fifty-four thousand, two hundred fifty-seven".