423005831 has 4 divisors (see below), whose sum is σ = 423089472. Its totient is φ = 422922192.

The previous prime is 423005777. The next prime is 423005833. The reversal of 423005831 is 138500324.

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 423005831 - 2⁶ = 423005767 is a prime.

It is a super-2 number, since 2×423005831² = 357867866120001122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423005831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423005833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33710 + ... + 44523.

It is an arithmetic number, because the mean of its divisors is an integer number (105772368).

Almost surely, 2^423005831 is an apocalyptic number.

423005831 is a deficient number, since it is larger than the sum of its proper divisors (83641).

423005831 is an equidigital number, since it uses as much as digits as its factorization.

423005831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83640.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 423005831 is about 20567.1055571755. The cubic root of 423005831 is about 750.6695242127.

The spelling of 423005831 in words is "four hundred twenty-three million, five thousand, eight hundred thirty-one".