423322979 has 2 divisors, whose sum is σ = 423322980. Its totient is φ = 423322978.

The previous prime is 423322969. The next prime is 423323023. The reversal of 423322979 is 979223324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423322979 - 2⁸ = 423322723 is a prime.

It is not a weakly prime, because it can be changed into another prime (423322969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211661489 + 211661490.

It is an arithmetic number, because the mean of its divisors is an integer number (211661490).

Almost surely, 2^423322979 is an apocalyptic number.

423322979 is a deficient number, since it is larger than the sum of its proper divisors (1).

423322979 is an equidigital number, since it uses as much as digits as its factorization.

423322979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 41.

The square root of 423322979 is about 20574.8141911416. The cubic root of 423322979 is about 750.8570818042.

The spelling of 423322979 in words is "four hundred twenty-three million, three hundred twenty-two thousand, nine hundred seventy-nine".