8722210 has 32 divisors (see below), whose sum is σ = 18289152. Its totient is φ = 2932800.

The previous prime is 8722193. The next prime is 8722211. The reversal of 8722210 is 122278.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8722211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2535 + ... + 4885.

It is an arithmetic number, because the mean of its divisors is an integer number (571536).

Almost surely, 2^8722210 is an apocalyptic number.

8722210 is an abundant number, since it is smaller than the sum of its proper divisors (9566942).

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

8722210 is a wasteful number, since it uses less digits than its factorization.

8722210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 8722210 is about 2953.3387885578. The cubic root of 8722210 is about 205.8458802618.

Adding to 8722210 its reverse (122278), we get a palindrome (8844488).

The spelling of 8722210 in words is "eight million, seven hundred twenty-two thousand, two hundred ten".