9168722 has 4 divisors (see below), whose sum is σ = 13753086. Its totient is φ = 4584360.

The previous prime is 9168721. The next prime is 9168737. The reversal of 9168722 is 2278619.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2278619 = 7 ⋅325517.

It can be written as a sum of positive squares in only one way, i.e., 4879681 + 4289041 = 2209^2 + 2071^2 .

It is a super-2 number, since 2×9168722² = 168130926226568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9168721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2292179 + ... + 2292182.

Almost surely, 2^9168722 is an apocalyptic number.

9168722 is a deficient number, since it is larger than the sum of its proper divisors (4584364).

9168722 is a wasteful number, since it uses less digits than its factorization.

9168722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4584363.

The product of its digits is 12096, while the sum is 35.

The square root of 9168722 is about 3027.9897622020. The cubic root of 9168722 is about 209.3001799047.

The spelling of 9168722 in words is "nine million, one hundred sixty-eight thousand, seven hundred twenty-two".