423812671 has 4 divisors (see below), whose sum is σ = 424949272. Its totient is φ = 422676072.

The previous prime is 423812663. The next prime is 423812693. The reversal of 423812671 is 176218324.

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 423812671 - 2³ = 423812663 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 (423812611) 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, 567741 + ... + 568486.

It is an arithmetic number, because the mean of its divisors is an integer number (106237318).

Almost surely, 2^423812671 is an apocalyptic number.

423812671 is a deficient number, since it is larger than the sum of its proper divisors (1136601).

423812671 is a wasteful number, since it uses less digits than its factorization.

423812671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136600.

The product of its digits is 16128, while the sum is 34.

The square root of 423812671 is about 20586.7110292052. The cubic root of 423812671 is about 751.1464959844.

The spelling of 423812671 in words is "four hundred twenty-three million, eight hundred twelve thousand, six hundred seventy-one".