9168681 has 4 divisors (see below), whose sum is σ = 12224912. Its totient is φ = 6112452.

The previous prime is 9168673. The next prime is 9168689. The reversal of 9168681 is 1868619.

9168681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (9168673) and next prime (9168689).

It is not a de Polignac number, because 9168681 - 2³ = 9168673 is a prime.

It is a super-2 number, since 2×9168681² = 168129422559522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9168689) 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 in 3 ways as a sum of consecutive naturals, for example, 1528111 + ... + 1528116.

It is an arithmetic number, because the mean of its divisors is an integer number (3056228).

Almost surely, 2^9168681 is an apocalyptic number.

It is an amenable number.

9168681 is a deficient number, since it is larger than the sum of its proper divisors (3056231).

9168681 is a wasteful number, since it uses less digits than its factorization.

9168681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056230.

The product of its digits is 20736, while the sum is 39.

The square root of 9168681 is about 3027.9829920262. The cubic root of 9168681 is about 209.2998679266.

The spelling of 9168681 in words is "nine million, one hundred sixty-eight thousand, six hundred eighty-one".