8422628 has 12 divisors (see below), whose sum is σ = 14780220. Its totient is φ = 4199712.

The previous prime is 8422627. The next prime is 8422649. The reversal of 8422628 is 8262248.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1909924 + 6512704 = 1382^2 + 2552^2 .

It is a d-powerful number, because it can be written as 8² + 4³ + 2¹⁰ + 2¹⁵ + 6² + 2²³ + 8² .

It is a junction number, because it is equal to n+sod(n) for n = 8422594 and 8422603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8422627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151 + ... + 4262.

It is an arithmetic number, because the mean of its divisors is an integer number (1231685).

Almost surely, 2^8422628 is an apocalyptic number.

It is an amenable number.

8422628 is a deficient number, since it is larger than the sum of its proper divisors (6357592).

8422628 is a wasteful number, since it uses less digits than its factorization.

8422628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5806 (or 5804 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 8422628 is about 2902.1764246854. The cubic root of 8422628 is about 203.4616395848.

The spelling of 8422628 in words is "eight million, four hundred twenty-two thousand, six hundred twenty-eight".