423548865 has 16 divisors (see below), whose sum is σ = 752976000. Its totient is φ = 225892656.

The previous prime is 423548861. The next prime is 423548899. The reversal of 423548865 is 568845324.

423548865 is a `hidden beast` number, since 4 + 23 + 548 + 86 + 5 = 666.

It is not a de Polignac number, because 423548865 - 2² = 423548861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 423548865.

It is not an unprimeable number, because it can be changed into a prime (423548861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1568565 + ... + 1568834.

It is an arithmetic number, because the mean of its divisors is an integer number (47061000).

Almost surely, 2^423548865 is an apocalyptic number.

423548865 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

423548865 is a deficient number, since it is larger than the sum of its proper divisors (329427135).

423548865 is a wasteful number, since it uses less digits than its factorization.

423548865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3137413 (or 3137407 counting only the distinct ones).

The product of its digits is 921600, while the sum is 45.

The square root of 423548865 is about 20580.3028403374. The cubic root of 423548865 is about 750.9906110104.

The spelling of 423548865 in words is "four hundred twenty-three million, five hundred forty-eight thousand, eight hundred sixty-five".