8223620 has 24 divisors (see below), whose sum is σ = 17737944. Its totient is φ = 3200256.

The previous prime is 8223601. The next prime is 8223653. The reversal of 8223620 is 263228.

It can be written as a sum of positive squares in 4 ways, for example, as 293764 + 7929856 = 542^2 + 2816^2 .

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, 4817 + ... + 6296.

It is an arithmetic number, because the mean of its divisors is an integer number (739081).

Almost surely, 2^8223620 is an apocalyptic number.

It is an amenable number.

8223620 is an abundant number, since it is smaller than the sum of its proper divisors (9514324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8223620 is a wasteful number, since it uses less digits than its factorization.

8223620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11159 (or 11157 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 8223620 is about 2867.6854778724. The cubic root of 8223620 is about 201.8464015503.

Adding to 8223620 its reverse (263228), we get a palindrome (8486848).

The spelling of 8223620 in words is "eight million, two hundred twenty-three thousand, six hundred twenty".