9220730 has 8 divisors (see below), whose sum is σ = 16597332. Its totient is φ = 3688288.

The previous prime is 9220721. The next prime is 9220751. The reversal of 9220730 is 370229.

9220730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8814961 + 405769 = 2969^2 + 637^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 9220696 and 9220705.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461027 + ... + 461046.

Almost surely, 2^9220730 is an apocalyptic number.

9220730 is a deficient number, since it is larger than the sum of its proper divisors (7376602).

9220730 is a wasteful number, since it uses less digits than its factorization.

9220730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922080.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 9220730 is about 3036.5654941068. The cubic root of 9220730 is about 209.6951737667.

Adding to 9220730 its reverse (370229), we get a palindrome (9590959).

The spelling of 9220730 in words is "nine million, two hundred twenty thousand, seven hundred thirty".