8421422 has 16 divisors (see below), whose sum is σ = 13050720. Its totient is φ = 4072608.

The previous prime is 8421419. The next prime is 8421463. The reversal of 8421422 is 2241248.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23279 + ... + 23637.

It is an arithmetic number, because the mean of its divisors is an integer number (815670).

Almost surely, 2^8421422 is an apocalyptic number.

8421422 is a deficient number, since it is larger than the sum of its proper divisors (4629298).

8421422 is a wasteful number, since it uses less digits than its factorization.

8421422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715.

The product of its digits is 1024, while the sum is 23.

The square root of 8421422 is about 2901.9686421462. The cubic root of 8421422 is about 203.4519281880.

The spelling of 8421422 in words is "eight million, four hundred twenty-one thousand, four hundred twenty-two".