423447343 has 4 divisors (see below), whose sum is σ = 461942568. Its totient is φ = 384952120.

The previous prime is 423447331. The next prime is 423447391. The reversal of 423447343 is 343744324.

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 423447343 - 2⁹ = 423446831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423447299 and 423447308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423442343) 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, 19247596 + ... + 19247617.

It is an arithmetic number, because the mean of its divisors is an integer number (115485642).

Almost surely, 2^423447343 is an apocalyptic number.

423447343 is a deficient number, since it is larger than the sum of its proper divisors (38495225).

423447343 is a wasteful number, since it uses less digits than its factorization.

423447343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38495224.

The product of its digits is 96768, while the sum is 34.

The square root of 423447343 is about 20577.8362079204. The cubic root of 423447343 is about 750.9306036397.

The spelling of 423447343 in words is "four hundred twenty-three million, four hundred forty-seven thousand, three hundred forty-three".