9702220 has 24 divisors (see below), whose sum is σ = 22227408. Its totient is φ = 3528000.

The previous prime is 9702197. The next prime is 9702229. The reversal of 9702220 is 222079.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 9702191 and 9702200.

It is not an unprimeable number, because it can be changed into a prime (9702229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21831 + ... + 22270.

It is an arithmetic number, because the mean of its divisors is an integer number (926142).

Almost surely, 2^9702220 is an apocalyptic number.

It is an amenable number.

9702220 is an abundant number, since it is smaller than the sum of its proper divisors (12525188).

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

9702220 is a wasteful number, since it uses less digits than its factorization.

9702220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44121 (or 44119 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 9702220 is about 3114.8386796109. The cubic root of 9702220 is about 213.2833921726.

Adding to 9702220 its reverse (222079), we get a palindrome (9924299).

The spelling of 9702220 in words is "nine million, seven hundred two thousand, two hundred twenty".