423548775 has 72 divisors (see below), whose sum is σ = 826665840. Its totient is φ = 206046720.

The previous prime is 423548773. The next prime is 423548777. The reversal of 423548775 is 577845324.

It is an interprime number because it is at equal distance from previous prime (423548773) and next prime (423548777).

It is not a de Polignac number, because 423548775 - 2¹ = 423548773 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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

It is a self number, because there is not a number n which added to its sum of digits gives 423548775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423548773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 259512 + ... + 261138.

It is an arithmetic number, because the mean of its divisors is an integer number (11481470).

Almost surely, 2^423548775 is an apocalyptic number.

423548775 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

423548775 is a deficient number, since it is larger than the sum of its proper divisors (403117065).

423548775 is a wasteful number, since it uses less digits than its factorization.

423548775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745 (or 1737 counting only the distinct ones).

The product of its digits is 940800, while the sum is 45.

The square root of 423548775 is about 20580.3006537805. The cubic root of 423548775 is about 750.9905578176.

The spelling of 423548775 in words is "four hundred twenty-three million, five hundred forty-eight thousand, seven hundred seventy-five".