423031393 has 4 divisors (see below), whose sum is σ = 423088128. Its totient is φ = 422974660.

The previous prime is 423031391. The next prime is 423031421. The reversal of 423031393 is 393130324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 423031393 - 2¹ = 423031391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423031391) 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, 15121 + ... + 32782.

It is an arithmetic number, because the mean of its divisors is an integer number (105772032).

Almost surely, 2^423031393 is an apocalyptic number.

It is an amenable number.

423031393 is a deficient number, since it is larger than the sum of its proper divisors (56735).

423031393 is an equidigital number, since it uses as much as digits as its factorization.

423031393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56734.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 423031393 is about 20567.7269769899. The cubic root of 423031393 is about 750.6846447512.

The spelling of 423031393 in words is "four hundred twenty-three million, thirty-one thousand, three hundred ninety-three".