4167949 has 2 divisors, whose sum is σ = 4167950. Its totient is φ = 4167948.

The previous prime is 4167931. The next prime is 4167953. The reversal of 4167949 is 9497614.

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., 2617924 + 1550025 = 1618^2 + 1245^2 .

It is a cyclic number.

It is not a de Polignac number, because 4167949 - 2⁹ = 4167437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4167979) 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, 2083974 + 2083975.

It is an arithmetic number, because the mean of its divisors is an integer number (2083975).

Almost surely, 2^4167949 is an apocalyptic number.

It is an amenable number.

4167949 is a deficient number, since it is larger than the sum of its proper divisors (1).

4167949 is an equidigital number, since it uses as much as digits as its factorization.

4167949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 4167949 is about 2041.5555343904. Note that the first 4 decimals coincide. The cubic root of 4167949 is about 160.9314034640.

The spelling of 4167949 in words is "four million, one hundred sixty-seven thousand, nine hundred forty-nine".