8642422 has 4 divisors (see below), whose sum is σ = 12963636. Its totient is φ = 4321210.

The previous prime is 8642383. The next prime is 8642429. The reversal of 8642422 is 2242468.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8642429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2160604 + ... + 2160607.

It is an arithmetic number, because the mean of its divisors is an integer number (3240909).

Almost surely, 2^8642422 is an apocalyptic number.

8642422 is a deficient number, since it is larger than the sum of its proper divisors (4321214).

8642422 is a wasteful number, since it uses less digits than its factorization.

8642422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4321213.

The product of its digits is 6144, while the sum is 28.

The square root of 8642422 is about 2939.7996530376. The cubic root of 8642422 is about 205.2162857068.

The spelling of 8642422 in words is "eight million, six hundred forty-two thousand, four hundred twenty-two".