8691361 has 8 divisors (see below), whose sum is σ = 9972864. Its totient is φ = 7419840.

The previous prime is 8691359. The next prime is 8691367. The reversal of 8691361 is 1631968.

8691361 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 a cyclic number.

It is not a de Polignac number, because 8691361 - 2¹ = 8691359 is a prime.

It is a Duffinian number.

8691361 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8691367) 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, 520 + ... + 4201.

It is an arithmetic number, because the mean of its divisors is an integer number (1246608).

Almost surely, 2^8691361 is an apocalyptic number.

It is an amenable number.

8691361 is a deficient number, since it is larger than the sum of its proper divisors (1281503).

8691361 is a wasteful number, since it uses less digits than its factorization.

8691361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4991.

The product of its digits is 7776, while the sum is 34.

The square root of 8691361 is about 2948.1114293730. Note that the first 3 decimals coincide. The cubic root of 8691361 is about 205.6029127583.

The spelling of 8691361 in words is "eight million, six hundred ninety-one thousand, three hundred sixty-one".