411369509 has 2 divisors, whose sum is σ = 411369510. Its totient is φ = 411369508.

The previous prime is 411369493. The next prime is 411369529. The reversal of 411369509 is 905963114.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411197284 + 172225 = 20278^2 + 415^2 .

It is a cyclic number.

It is not a de Polignac number, because 411369509 - 2⁴ = 411369493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (411369529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205684754 + 205684755.

It is an arithmetic number, because the mean of its divisors is an integer number (205684755).

Almost surely, 2^411369509 is an apocalyptic number.

It is an amenable number.

411369509 is a deficient number, since it is larger than the sum of its proper divisors (1).

411369509 is an equidigital number, since it uses as much as digits as its factorization.

411369509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 411369509 is about 20282.2461527317. The cubic root of 411369509 is about 743.7221214605.

The spelling of 411369509 in words is "four hundred eleven million, three hundred sixty-nine thousand, five hundred nine".