427217222 has 8 divisors (see below), whose sum is σ = 640981200. Its totient is φ = 213556824.

The previous prime is 427217213. The next prime is 427217233. The reversal of 427217222 is 222712724.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14597 + ... + 32672.

It is an arithmetic number, because the mean of its divisors is an integer number (80122650).

Almost surely, 2^427217222 is an apocalyptic number.

427217222 is a deficient number, since it is larger than the sum of its proper divisors (213763978).

427217222 is a wasteful number, since it uses less digits than its factorization.

427217222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51790.

The product of its digits is 6272, while the sum is 29.

The square root of 427217222 is about 20669.2337061634. The cubic root of 427217222 is about 753.1524916808.

Adding to 427217222 its reverse (222712724), we get a palindrome (649929946).

The spelling of 427217222 in words is "four hundred twenty-seven million, two hundred seventeen thousand, two hundred twenty-two".