423535019 has 2 divisors, whose sum is σ = 423535020. Its totient is φ = 423535018.

The previous prime is 423535003. The next prime is 423535067. The reversal of 423535019 is 910535324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423535019 - 2⁴ = 423535003 is a prime.

It is a super-2 number, since 2×423535019² = 358763824638660722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (423531019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211767509 + 211767510.

It is an arithmetic number, because the mean of its divisors is an integer number (211767510).

Almost surely, 2^423535019 is an apocalyptic number.

423535019 is a deficient number, since it is larger than the sum of its proper divisors (1).

423535019 is an equidigital number, since it uses as much as digits as its factorization.

423535019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 423535019 is about 20579.9664479804. The cubic root of 423535019 is about 750.9824275160.

The spelling of 423535019 in words is "four hundred twenty-three million, five hundred thirty-five thousand, nineteen".