406611949 has 2 divisors, whose sum is σ = 406611950. Its totient is φ = 406611948.

The previous prime is 406611889. The next prime is 406611977. The reversal of 406611949 is 949116604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243921924 + 162690025 = 15618^2 + 12755^2 .

It is a cyclic number.

It is not a de Polignac number, because 406611949 - 2⁹ = 406611437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406611979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203305974 + 203305975.

It is an arithmetic number, because the mean of its divisors is an integer number (203305975).

Almost surely, 2^406611949 is an apocalyptic number.

It is an amenable number.

406611949 is a deficient number, since it is larger than the sum of its proper divisors (1).

406611949 is an equidigital number, since it uses as much as digits as its factorization.

406611949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 406611949 is about 20164.6212213371. The cubic root of 406611949 is about 740.8439051428.

The spelling of 406611949 in words is "four hundred six million, six hundred eleven thousand, nine hundred forty-nine".