423543797 has 4 divisors (see below), whose sum is σ = 448458156. Its totient is φ = 398629440.

The previous prime is 423543787. The next prime is 423543833. The reversal of 423543797 is 797345324.

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

It can be written as a sum of positive squares in 2 ways, for example, as 182952676 + 240591121 = 13526^2 + 15511^2 .

It is a cyclic number.

It is not a de Polignac number, because 423543797 - 2¹⁰ = 423542773 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 (423543787) 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, 12457154 + ... + 12457187.

It is an arithmetic number, because the mean of its divisors is an integer number (112114539).

Almost surely, 2^423543797 is an apocalyptic number.

It is an amenable number.

423543797 is a deficient number, since it is larger than the sum of its proper divisors (24914359).

423543797 is a wasteful number, since it uses less digits than its factorization.

423543797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24914358.

The product of its digits is 635040, while the sum is 44.

The square root of 423543797 is about 20580.1797125292. The cubic root of 423543797 is about 750.9876156570.

The spelling of 423543797 in words is "four hundred twenty-three million, five hundred forty-three thousand, seven hundred ninety-seven".