422999 has 4 divisors (see below), whose sum is σ = 426360. Its totient is φ = 419640.

The previous prime is 422987. The next prime is 423001. The reversal of 422999 is 999224.

422999 is nontrivially palindromic in base 7.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422999 is a prime.

It is a Duffinian number.

422999 is a modest number, since divided by 999 gives 422 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1484 + ... + 1745.

It is an arithmetic number, because the mean of its divisors is an integer number (106590).

2⁴²²⁹⁹⁹ is an apocalyptic number.

422999 is a deficient number, since it is larger than the sum of its proper divisors (3361).

422999 is a wasteful number, since it uses less digits than its factorization.

422999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360.

The product of its digits is 11664, while the sum is 35.

The square root of 422999 is about 650.3837328839. The cubic root of 422999 is about 75.0665483409.

The spelling of 422999 in words is "four hundred twenty-two thousand, nine hundred ninety-nine".