423564547 has 8 divisors (see below), whose sum is σ = 484503552. Its totient is φ = 362733000.

The previous prime is 423564457. The next prime is 423564551. The reversal of 423564547 is 745465324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 423564547 - 2²³ = 415175939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423564247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18229 + ... + 34342.

It is an arithmetic number, because the mean of its divisors is an integer number (60562944).

Almost surely, 2^423564547 is an apocalyptic number.

423564547 is a deficient number, since it is larger than the sum of its proper divisors (60939005).

423564547 is a wasteful number, since it uses less digits than its factorization.

423564547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53729.

The product of its digits is 403200, while the sum is 40.

The square root of 423564547 is about 20580.6838321762. The cubic root of 423564547 is about 750.9998794328. Note that the first 3 decimals are identical.

The spelling of 423564547 in words is "four hundred twenty-three million, five hundred sixty-four thousand, five hundred forty-seven".