424646423 has 4 divisors (see below), whose sum is σ = 431843880. Its totient is φ = 417448968.

The previous prime is 424646413. The next prime is 424646477. The reversal of 424646423 is 324646424.

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

It is a cyclic number.

It is not a de Polignac number, because 424646423 - 2¹² = 424642327 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 (424646413) 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 3 ways as a sum of consecutive naturals, for example, 3598640 + ... + 3598757.

It is an arithmetic number, because the mean of its divisors is an integer number (107960970).

Almost surely, 2^424646423 is an apocalyptic number.

424646423 is a deficient number, since it is larger than the sum of its proper divisors (7197457).

424646423 is an equidigital number, since it uses as much as digits as its factorization.

424646423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7197456.

The product of its digits is 110592, while the sum is 35.

The square root of 424646423 is about 20606.9508418883. The cubic root of 424646423 is about 751.6387415013.

Subtracting from 424646423 its reverse (324646424), we obtain a palindrome (99999999).

The spelling of 424646423 in words is "four hundred twenty-four million, six hundred forty-six thousand, four hundred twenty-three".