422993 has 8 divisors (see below), whose sum is σ = 451008. Its totient is φ = 395824.

The previous prime is 422987. The next prime is 423001. The reversal of 422993 is 399224.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (422923) 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, 1046 + ... + 1392.

It is an arithmetic number, because the mean of its divisors is an integer number (56376).

2⁴²²⁹⁹³ is an apocalyptic number.

It is an amenable number.

422993 is a deficient number, since it is larger than the sum of its proper divisors (28015).

422993 is a wasteful number, since it uses less digits than its factorization.

422993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423.

The product of its digits is 3888, while the sum is 29.

The square root of 422993 is about 650.3791202061. The cubic root of 422993 is about 75.0661934138.

The spelling of 422993 in words is "four hundred twenty-two thousand, nine hundred ninety-three".