423942067 has 2 divisors, whose sum is σ = 423942068. Its totient is φ = 423942066.

The previous prime is 423942059. The next prime is 423942109. The reversal of 423942067 is 760249324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423942067 - 2³ = 423942059 is a prime.

It is not a weakly prime, because it can be changed into another prime (423942017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211971033 + 211971034.

It is an arithmetic number, because the mean of its divisors is an integer number (211971034).

Almost surely, 2^423942067 is an apocalyptic number.

423942067 is a deficient number, since it is larger than the sum of its proper divisors (1).

423942067 is an equidigital number, since it uses as much as digits as its factorization.

423942067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 423942067 is about 20589.8534963219. The cubic root of 423942067 is about 751.2229334206. Note that the first 3 decimals are identical.

The spelling of 423942067 in words is "four hundred twenty-three million, nine hundred forty-two thousand, sixty-seven".