409667701 has 2 divisors, whose sum is σ = 409667702. Its totient is φ = 409667700.

The previous prime is 409667669. The next prime is 409667707. The reversal of 409667701 is 107766904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 361988676 + 47679025 = 19026^2 + 6905^2 .

It is a cyclic number.

It is not a de Polignac number, because 409667701 - 2⁵ = 409667669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409667707) 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, 204833850 + 204833851.

It is an arithmetic number, because the mean of its divisors is an integer number (204833851).

Almost surely, 2^409667701 is an apocalyptic number.

It is an amenable number.

409667701 is a deficient number, since it is larger than the sum of its proper divisors (1).

409667701 is an equidigital number, since it uses as much as digits as its factorization.

409667701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 409667701 is about 20240.2495290942. The cubic root of 409667701 is about 742.6951278174.

The spelling of 409667701 in words is "four hundred nine million, six hundred sixty-seven thousand, seven hundred one".