423353279 has 2 divisors, whose sum is σ = 423353280. Its totient is φ = 423353278.

The previous prime is 423353251. The next prime is 423353309. The reversal of 423353279 is 972353324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423353279 - 2²⁸ = 154917823 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423353209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211676639 + 211676640.

It is an arithmetic number, because the mean of its divisors is an integer number (211676640).

Almost surely, 2^423353279 is an apocalyptic number.

423353279 is a deficient number, since it is larger than the sum of its proper divisors (1).

423353279 is an equidigital number, since it uses as much as digits as its factorization.

423353279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 38.

The square root of 423353279 is about 20575.5505151138. The cubic root of 423353279 is about 750.8749959643.

The spelling of 423353279 in words is "four hundred twenty-three million, three hundred fifty-three thousand, two hundred seventy-nine".