423042079 has 2 divisors, whose sum is σ = 423042080. Its totient is φ = 423042078.

The previous prime is 423042071. The next prime is 423042091. The reversal of 423042079 is 970240324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423042079 - 2³ = 423042071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423042079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423042071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211521039 + 211521040.

It is an arithmetic number, because the mean of its divisors is an integer number (211521040).

Almost surely, 2^423042079 is an apocalyptic number.

423042079 is a deficient number, since it is larger than the sum of its proper divisors (1).

423042079 is an equidigital number, since it uses as much as digits as its factorization.

423042079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 423042079 is about 20567.9867512598. The cubic root of 423042079 is about 750.6909655969.

The spelling of 423042079 in words is "four hundred twenty-three million, forty-two thousand, seventy-nine".