9813691 has 8 divisors (see below), whose sum is σ = 10105344. Its totient is φ = 9526440.

The previous prime is 9813679. The next prime is 9813703. The reversal of 9813691 is 1963189.

It is an interprime number because it is at equal distance from previous prime (9813679) and next prime (9813703).

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

It is a cyclic number.

It is not a de Polignac number, because 9813691 - 2⁵ = 9813659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9813691.

It is not an unprimeable number, because it can be changed into a prime (9813611) 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, 3726 + ... + 5788.

It is an arithmetic number, because the mean of its divisors is an integer number (1263168).

Almost surely, 2^9813691 is an apocalyptic number.

9813691 is a deficient number, since it is larger than the sum of its proper divisors (291653).

9813691 is a wasteful number, since it uses less digits than its factorization.

9813691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201.

The product of its digits is 11664, while the sum is 37.

The square root of 9813691 is about 3132.6811200631. The cubic root of 9813691 is about 214.0971041541.

The spelling of 9813691 in words is "nine million, eight hundred thirteen thousand, six hundred ninety-one".