423021463 has 4 divisors (see below), whose sum is σ = 437608440. Its totient is φ = 408434488.

The previous prime is 423021439. The next prime is 423021499. The reversal of 423021463 is 364120324.

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 423021463 - 2⁹ = 423020951 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 (423021413) 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, 7293445 + ... + 7293502.

It is an arithmetic number, because the mean of its divisors is an integer number (109402110).

Almost surely, 2^423021463 is an apocalyptic number.

423021463 is a deficient number, since it is larger than the sum of its proper divisors (14586977).

423021463 is a wasteful number, since it uses less digits than its factorization.

423021463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14586976.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 423021463 is about 20567.4855779699. The cubic root of 423021463 is about 750.6787709894.

Adding to 423021463 its reverse (364120324), we get a palindrome (787141787).

The spelling of 423021463 in words is "four hundred twenty-three million, twenty-one thousand, four hundred sixty-three".