8623620 has 72 divisors (see below), whose sum is σ = 27308736. Its totient is φ = 2198592.

The previous prime is 8623619. The next prime is 8623621. The reversal of 8623620 is 263268.

It is an interprime number because it is at equal distance from previous prime (8623619) and next prime (8623621).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8623621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3099 + ... + 5181.

It is an arithmetic number, because the mean of its divisors is an integer number (379288).

Almost surely, 2^8623620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8623620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13654368).

8623620 is an abundant number, since it is smaller than the sum of its proper divisors (18685116).

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

8623620 is a wasteful number, since it uses less digits than its factorization.

8623620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121 (or 2116 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 8623620 is about 2936.6000749166. The cubic root of 8623620 is about 205.0673583926.

Adding to 8623620 its reverse (263268), we get a palindrome (8886888).

The spelling of 8623620 in words is "eight million, six hundred twenty-three thousand, six hundred twenty".