9007681 has 4 divisors (see below), whose sum is σ = 9142192. Its totient is φ = 8873172.

The previous prime is 9007679. The next prime is 9007703. The reversal of 9007681 is 1867009.

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 a cyclic number.

It is not a de Polignac number, because 9007681 - 2¹ = 9007679 is a prime.

It is a super-2 number, since 2×9007681² = 162276633995522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9007631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67155 + ... + 67288.

It is an arithmetic number, because the mean of its divisors is an integer number (2285548).

Almost surely, 2^9007681 is an apocalyptic number.

It is an amenable number.

9007681 is a deficient number, since it is larger than the sum of its proper divisors (134511).

9007681 is a wasteful number, since it uses less digits than its factorization.

9007681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134510.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 9007681 is about 3001.2798936454. The cubic root of 9007681 is about 208.0675400119.

The spelling of 9007681 in words is "nine million, seven thousand, six hundred eighty-one".