423447023 has 4 divisors (see below), whose sum is σ = 424067688. Its totient is φ = 422826360.

The previous prime is 423447019. The next prime is 423447077. The reversal of 423447023 is 320744324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 423447023 - 2² = 423447019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423447923) 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, 309308 + ... + 310673.

It is an arithmetic number, because the mean of its divisors is an integer number (106016922).

Almost surely, 2^423447023 is an apocalyptic number.

423447023 is a deficient number, since it is larger than the sum of its proper divisors (620665).

423447023 is an equidigital number, since it uses as much as digits as its factorization.

423447023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620664.

The product of its (nonzero) digits is 16128, while the sum is 29.

The square root of 423447023 is about 20577.8284325630. The cubic root of 423447023 is about 750.9304144798.

The spelling of 423447023 in words is "four hundred twenty-three million, four hundred forty-seven thousand, twenty-three".