422507 has 4 divisors (see below), whose sum is σ = 426360. Its totient is φ = 418656.

The previous prime is 422479. The next prime is 422537. The reversal of 422507 is 705224.

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 422507 - 2¹⁰ = 421483 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 422507.

It is not an unprimeable number, because it can be changed into a prime (422537) 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, 1757 + ... + 1982.

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

2⁴²²⁵⁰⁷ is an apocalyptic number.

422507 is a deficient number, since it is larger than the sum of its proper divisors (3853).

422507 is a wasteful number, since it uses less digits than its factorization.

422507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3852.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 422507 is about 650.0053845931. The cubic root of 422507 is about 75.0374331655.

It can be divided in two parts, 422 and 507, that added together give a palindrome (929).

The spelling of 422507 in words is "four hundred twenty-two thousand, five hundred seven".