8623220220 has 36 divisors (see below), whose sum is σ = 26157101880. Its totient is φ = 2299525344.

The previous prime is 8623220219. The next prime is 8623220251. The reversal of 8623220220 is 220223268.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23953210 + ... + 23953569.

Almost surely, 2^8623220220 is an apocalyptic number.

It is an amenable number.

8623220220 is an abundant number, since it is smaller than the sum of its proper divisors (17533881660).

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

8623220220 is a wasteful number, since it uses less digits than its factorization.

8623220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47906794 (or 47906789 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 8623220220 is about 92861.2955972508. The cubic root of 8623220220 is about 2050.6418945675.

Adding to 8623220220 its reverse (220223268), we get a palindrome (8843443488).

The spelling of 8623220220 in words is "eight billion, six hundred twenty-three million, two hundred twenty thousand, two hundred twenty".