8223638 has 4 divisors (see below), whose sum is σ = 12335460. Its totient is φ = 4111818.

The previous prime is 8223601. The next prime is 8223653. The reversal of 8223638 is 8363228.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2055908 + ... + 2055911.

It is an arithmetic number, because the mean of its divisors is an integer number (3083865).

Almost surely, 2^8223638 is an apocalyptic number.

8223638 is a deficient number, since it is larger than the sum of its proper divisors (4111822).

8223638 is a wasteful number, since it uses less digits than its factorization.

8223638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4111821.

The product of its digits is 13824, while the sum is 32.

The square root of 8223638 is about 2867.6886162901. The cubic root of 8223638 is about 201.8465488185.

The spelling of 8223638 in words is "eight million, two hundred twenty-three thousand, six hundred thirty-eight".