423430507 has 2 divisors, whose sum is σ = 423430508. Its totient is φ = 423430506.

The previous prime is 423430489. The next prime is 423430517. The reversal of 423430507 is 705034324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423430507 - 2¹⁵ = 423397739 is a prime.

It is not a weakly prime, because it can be changed into another prime (423430517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211715253 + 211715254.

It is an arithmetic number, because the mean of its divisors is an integer number (211715254).

Almost surely, 2^423430507 is an apocalyptic number.

423430507 is a deficient number, since it is larger than the sum of its proper divisors (1).

423430507 is an equidigital number, since it uses as much as digits as its factorization.

423430507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 423430507 is about 20577.4271229423. The cubic root of 423430507 is about 750.9206513317.

The spelling of 423430507 in words is "four hundred twenty-three million, four hundred thirty thousand, five hundred seven".