423457963 has 4 divisors (see below), whose sum is σ = 433786248. Its totient is φ = 413129680.

The previous prime is 423457919. The next prime is 423458017. The reversal of 423457963 is 369754324.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423457963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421457963) 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, 5164081 + ... + 5164162.

It is an arithmetic number, because the mean of its divisors is an integer number (108446562).

Almost surely, 2^423457963 is an apocalyptic number.

423457963 is a deficient number, since it is larger than the sum of its proper divisors (10328285).

423457963 is a wasteful number, since it uses less digits than its factorization.

423457963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10328284.

The product of its digits is 544320, while the sum is 43.

The square root of 423457963 is about 20578.0942509262. The cubic root of 423457963 is about 750.9368813320.

The spelling of 423457963 in words is "four hundred twenty-three million, four hundred fifty-seven thousand, nine hundred sixty-three".