9351681 has 8 divisors (see below), whose sum is σ = 12512640. Its totient is φ = 6212592.

The previous prime is 9351653. The next prime is 9351689. The reversal of 9351681 is 1861539.

9351681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 9351681 - 2¹⁵ = 9318913 is a prime.

It is a super-2 number, since 2×9351681² = 174907875051522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9351689) 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, 4441 + ... + 6198.

It is an arithmetic number, because the mean of its divisors is an integer number (1564080).

Almost surely, 2^9351681 is an apocalyptic number.

It is an amenable number.

9351681 is a deficient number, since it is larger than the sum of its proper divisors (3160959).

9351681 is a wasteful number, since it uses less digits than its factorization.

9351681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10935.

The product of its digits is 6480, while the sum is 33.

The square root of 9351681 is about 3058.0518308230. The cubic root of 9351681 is about 210.6831944496.

The spelling of 9351681 in words is "nine million, three hundred fifty-one thousand, six hundred eighty-one".