423401579 has 2 divisors, whose sum is σ = 423401580. Its totient is φ = 423401578.

The previous prime is 423401543. The next prime is 423401581. The reversal of 423401579 is 975104324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423401579 - 2²⁴ = 406624363 is a prime.

Together with 423401581, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (423401519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211700789 + 211700790.

It is an arithmetic number, because the mean of its divisors is an integer number (211700790).

Almost surely, 2^423401579 is an apocalyptic number.

423401579 is a deficient number, since it is larger than the sum of its proper divisors (1).

423401579 is an equidigital number, since it uses as much as digits as its factorization.

423401579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 423401579 is about 20576.7242047902. The cubic root of 423401579 is about 750.9035504324.

The spelling of 423401579 in words is "four hundred twenty-three million, four hundred one thousand, five hundred seventy-nine".