8220626 has 4 divisors (see below), whose sum is σ = 12330942. Its totient is φ = 4110312.

The previous prime is 8220581. The next prime is 8220631. The reversal of 8220626 is 6260228.

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

It can be written as a sum of positive squares in only one way, i.e., 6528025 + 1692601 = 2555^2 + 1301^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8220595 and 8220604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2055155 + ... + 2055158.

Almost surely, 2^8220626 is an apocalyptic number.

8220626 is a deficient number, since it is larger than the sum of its proper divisors (4110316).

8220626 is a wasteful number, since it uses less digits than its factorization.

8220626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4110315.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 8220626 is about 2867.1634065745. The cubic root of 8220626 is about 201.8219029523.

The spelling of 8220626 in words is "eight million, two hundred twenty thousand, six hundred twenty-six".