422547 has 8 divisors (see below), whose sum is σ = 572880. Its totient is φ = 276960.

The previous prime is 422537. The next prime is 422549. The reversal of 422547 is 745224.

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

It is not a de Polignac number, because 422547 - 2⁸ = 422291 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 422547.

It is not an unprimeable number, because it can be changed into a prime (422549) 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, 972 + ... + 1337.

It is an arithmetic number, because the mean of its divisors is an integer number (71610).

2⁴²²⁵⁴⁷ is an apocalyptic number.

422547 is a deficient number, since it is larger than the sum of its proper divisors (150333).

422547 is a wasteful number, since it uses less digits than its factorization.

422547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373.

The product of its digits is 2240, while the sum is 24.

The square root of 422547 is about 650.0361528407. The cubic root of 422547 is about 75.0398010968.

It can be divided in two parts, 422 and 547, that added together give a palindrome (969).

The spelling of 422547 in words is "four hundred twenty-two thousand, five hundred forty-seven".