409468117 has 2 divisors, whose sum is σ = 409468118. Its totient is φ = 409468116.

The previous prime is 409468099. The next prime is 409468121. The reversal of 409468117 is 711864904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 409414756 + 53361 = 20234^2 + 231^2 .

It is a cyclic number.

It is not a de Polignac number, because 409468117 - 2¹¹ = 409466069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 409468117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409468127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204734058 + 204734059.

It is an arithmetic number, because the mean of its divisors is an integer number (204734059).

Almost surely, 2^409468117 is an apocalyptic number.

It is an amenable number.

409468117 is a deficient number, since it is larger than the sum of its proper divisors (1).

409468117 is an equidigital number, since it uses as much as digits as its factorization.

409468117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 409468117 is about 20235.3185544483. The cubic root of 409468117 is about 742.5744982255.

The spelling of 409468117 in words is "four hundred nine million, four hundred sixty-eight thousand, one hundred seventeen".