8638622 has 4 divisors (see below), whose sum is σ = 12957936. Its totient is φ = 4319310.

The previous prime is 8638621. The next prime is 8638627. The reversal of 8638622 is 2268368.

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 (8638621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2159654 + ... + 2159657.

It is an arithmetic number, because the mean of its divisors is an integer number (3239484).

Almost surely, 2^8638622 is an apocalyptic number.

8638622 is a deficient number, since it is larger than the sum of its proper divisors (4319314).

8638622 is a wasteful number, since it uses less digits than its factorization.

8638622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4319313.

The product of its digits is 27648, while the sum is 35.

The square root of 8638622 is about 2939.1532794327. The cubic root of 8638622 is about 205.1862040080.

The spelling of 8638622 in words is "eight million, six hundred thirty-eight thousand, six hundred twenty-two".