3919457 has 2 divisors, whose sum is σ = 3919458. Its totient is φ = 3919456.

The previous prime is 3919441. The next prime is 3919463. The reversal of 3919457 is 7549193.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3444736 + 474721 = 1856^2 + 689^2 .

It is a cyclic number.

It is not a de Polignac number, because 3919457 - 2⁴ = 3919441 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3919457.

It is not a weakly prime, because it can be changed into another prime (3919417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1959728 + 1959729.

It is an arithmetic number, because the mean of its divisors is an integer number (1959729).

Almost surely, 2^3919457 is an apocalyptic number.

It is an amenable number.

3919457 is a deficient number, since it is larger than the sum of its proper divisors (1).

3919457 is an equidigital number, since it uses as much as digits as its factorization.

3919457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 38.

The square root of 3919457 is about 1979.7618543653. The cubic root of 3919457 is about 157.6674225378.

The spelling of 3919457 in words is "three million, nine hundred nineteen thousand, four hundred fifty-seven".