423123769 has 4 divisors (see below), whose sum is σ = 423357696. Its totient is φ = 422889844.

The previous prime is 423123739. The next prime is 423123821. The reversal of 423123769 is 967321324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 423123769 - 2⁵ = 423123737 is a prime.

It is a super-2 number, since 2×423123769² = 358067447785530722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423123739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114229 + ... + 117874.

It is an arithmetic number, because the mean of its divisors is an integer number (105839424).

Almost surely, 2^423123769 is an apocalyptic number.

It is an amenable number.

423123769 is a deficient number, since it is larger than the sum of its proper divisors (233927).

423123769 is a wasteful number, since it uses less digits than its factorization.

423123769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233926.

The product of its digits is 54432, while the sum is 37.

The square root of 423123769 is about 20569.9725084892. The cubic root of 423123769 is about 750.7392823021.

The spelling of 423123769 in words is "four hundred twenty-three million, one hundred twenty-three thousand, seven hundred sixty-nine".