393423 has 8 divisors (see below), whose sum is σ = 528000. Its totient is φ = 260568.

The previous prime is 393413. The next prime is 393451. The reversal of 393423 is 324393.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 393423 - 2⁹ = 392911 is a prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 393393 and 393402.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 393423.

It is not an unprimeable number, because it can be changed into a prime (393403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268 + ... + 926.

It is an arithmetic number, because the mean of its divisors is an integer number (66000).

2³⁹³⁴²³ is an apocalyptic number.

393423 is a deficient number, since it is larger than the sum of its proper divisors (134577).

393423 is a wasteful number, since it uses less digits than its factorization.

393423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861.

The product of its digits is 1944, while the sum is 24.

The square root of 393423 is about 627.2344059441. The cubic root of 393423 is about 73.2745649457.

The spelling of 393423 in words is "three hundred ninety-three thousand, four hundred twenty-three".