422673217 has 4 divisors (see below), whose sum is σ = 425510100. Its totient is φ = 419836336.

The previous prime is 422673211. The next prime is 422673241. The reversal of 422673217 is 712376224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 132618256 + 290054961 = 11516^2 + 17031^2 .

It is a cyclic number.

It is not a de Polignac number, because 422673217 - 2¹⁹ = 422148929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422673211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1418218 + ... + 1418515.

It is an arithmetic number, because the mean of its divisors is an integer number (106377525).

Almost surely, 2^422673217 is an apocalyptic number.

It is an amenable number.

422673217 is a deficient number, since it is larger than the sum of its proper divisors (2836883).

422673217 is a wasteful number, since it uses less digits than its factorization.

422673217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836882.

The product of its digits is 28224, while the sum is 34.

The square root of 422673217 is about 20559.0178996955. The cubic root of 422673217 is about 750.4727194673.

The spelling of 422673217 in words is "four hundred twenty-two million, six hundred seventy-three thousand, two hundred seventeen".