423404659 has 2 divisors, whose sum is σ = 423404660. Its totient is φ = 423404658.

The previous prime is 423404633. The next prime is 423404689. The reversal of 423404659 is 956404324.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423404659 - 2²³ = 415016051 is a prime.

It is not a weakly prime, because it can be changed into another prime (423404629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211702329 + 211702330.

It is an arithmetic number, because the mean of its divisors is an integer number (211702330).

Almost surely, 2^423404659 is an apocalyptic number.

423404659 is a deficient number, since it is larger than the sum of its proper divisors (1).

423404659 is an equidigital number, since it uses as much as digits as its factorization.

423404659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 423404659 is about 20576.7990464989. The cubic root of 423404659 is about 750.9053712234.

The spelling of 423404659 in words is "four hundred twenty-three million, four hundred four thousand, six hundred fifty-nine".