409930427 has 2 divisors, whose sum is σ = 409930428. Its totient is φ = 409930426.

The previous prime is 409930393. The next prime is 409930459. The reversal of 409930427 is 724039904.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 409930427 - 2¹⁸ = 409668283 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (409930327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204965213 + 204965214.

It is an arithmetic number, because the mean of its divisors is an integer number (204965214).

Almost surely, 2^409930427 is an apocalyptic number.

409930427 is a deficient number, since it is larger than the sum of its proper divisors (1).

409930427 is an equidigital number, since it uses as much as digits as its factorization.

409930427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 409930427 is about 20246.7386756485. The cubic root of 409930427 is about 742.8538610397.

The spelling of 409930427 in words is "four hundred nine million, nine hundred thirty thousand, four hundred twenty-seven".