408911323 has 2 divisors, whose sum is σ = 408911324. Its totient is φ = 408911322.

The previous prime is 408911291. The next prime is 408911341. The reversal of 408911323 is 323119804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 408911323 - 2⁵ = 408911291 is a prime.

It is a super-2 number, since 2×408911323² = 334416940155220658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (408911423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204455661 + 204455662.

It is an arithmetic number, because the mean of its divisors is an integer number (204455662).

Almost surely, 2^408911323 is an apocalyptic number.

408911323 is a deficient number, since it is larger than the sum of its proper divisors (1).

408911323 is an equidigital number, since it uses as much as digits as its factorization.

408911323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 408911323 is about 20221.5558995840. Note that the first 3 decimals coincide. The cubic root of 408911323 is about 742.2377617312.

The spelling of 408911323 in words is "four hundred eight million, nine hundred eleven thousand, three hundred twenty-three".