323424421 has 4 divisors (see below), whose sum is σ = 323461312. Its totient is φ = 323387532.

The previous prime is 323424401. The next prime is 323424427. The reversal of 323424421 is 124424323.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 124424323 = 61 ⋅2039743.

It is a cyclic number.

It is not a de Polignac number, because 323424421 - 2⁵ = 323424389 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 (323424427) 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, 3076 + ... + 25618.

It is an arithmetic number, because the mean of its divisors is an integer number (80865328).

Almost surely, 2^323424421 is an apocalyptic number.

It is an amenable number.

323424421 is a deficient number, since it is larger than the sum of its proper divisors (36891).

323424421 is a wasteful number, since it uses less digits than its factorization.

323424421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36890.

The product of its digits is 4608, while the sum is 25.

The square root of 323424421 is about 17984.0045874104. The cubic root of 323424421 is about 686.4215924316.

Adding to 323424421 its reverse (124424323), we get a palindrome (447848744).

It can be divided in two parts, 32342 and 4421, that added together give a palindrome (36763).

The spelling of 323424421 in words is "three hundred twenty-three million, four hundred twenty-four thousand, four hundred twenty-one".