409854413 has 2 divisors, whose sum is σ = 409854414. Its totient is φ = 409854412.

The previous prime is 409854397. The next prime is 409854469. The reversal of 409854413 is 314458904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 404894884 + 4959529 = 20122^2 + 2227^2 .

It is a cyclic number.

It is not a de Polignac number, because 409854413 - 2⁴ = 409854397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409854493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204927206 + 204927207.

It is an arithmetic number, because the mean of its divisors is an integer number (204927207).

Almost surely, 2^409854413 is an apocalyptic number.

It is an amenable number.

409854413 is a deficient number, since it is larger than the sum of its proper divisors (1).

409854413 is an equidigital number, since it uses as much as digits as its factorization.

409854413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 409854413 is about 20244.8613974016. The cubic root of 409854413 is about 742.8079420411.

The spelling of 409854413 in words is "four hundred nine million, eight hundred fifty-four thousand, four hundred thirteen".