423454503 has 4 divisors (see below), whose sum is σ = 564606008. Its totient is φ = 282303000.

The previous prime is 423454481. The next prime is 423454517. The reversal of 423454503 is 305454324.

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

It is not a de Polignac number, because 423454503 - 2¹⁰ = 423453479 is a prime.

It is a super-2 number, since 2×423454503² = 358627432221954018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423454543) 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, 70575748 + ... + 70575753.

It is an arithmetic number, because the mean of its divisors is an integer number (141151502).

Almost surely, 2^423454503 is an apocalyptic number.

423454503 is a deficient number, since it is larger than the sum of its proper divisors (141151505).

423454503 is a wasteful number, since it uses less digits than its factorization.

423454503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141151504.

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 423454503 is about 20578.0101807731. The cubic root of 423454503 is about 750.9348360690.

The spelling of 423454503 in words is "four hundred twenty-three million, four hundred fifty-four thousand, five hundred three".