423111447 has 12 divisors (see below), whose sum is σ = 666721224. Its totient is φ = 256431120.

The previous prime is 423111401. The next prime is 423111449. The reversal of 423111447 is 744111324.

It is not a de Polignac number, because 423111447 - 2⁸ = 423111191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423111447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423111449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2136828 + ... + 2137025.

It is an arithmetic number, because the mean of its divisors is an integer number (55560102).

Almost surely, 2^423111447 is an apocalyptic number.

423111447 is a deficient number, since it is larger than the sum of its proper divisors (243609777).

423111447 is a wasteful number, since it uses less digits than its factorization.

423111447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4273870 (or 4273867 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 423111447 is about 20569.6729920531. The cubic root of 423111447 is about 750.7319946793.

The spelling of 423111447 in words is "four hundred twenty-three million, one hundred eleven thousand, four hundred forty-seven".