8361691 has 16 divisors (see below), whose sum is σ = 9604000. Its totient is φ = 7216128.

The previous prime is 8361679. The next prime is 8361701. The reversal of 8361691 is 1961638.

8361691 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 8361691 - 2⁹ = 8361179 is a prime.

It is a Duffinian number.

8361691 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8361601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23785 + ... + 24133.

It is an arithmetic number, because the mean of its divisors is an integer number (600250).

Almost surely, 2^8361691 is an apocalyptic number.

8361691 is the 1670-th hex number.

8361691 is a deficient number, since it is larger than the sum of its proper divisors (1242309).

8361691 is a wasteful number, since it uses less digits than its factorization.

8361691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478.

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

The square root of 8361691 is about 2891.6588664640. The cubic root of 8361691 is about 202.9697755644.

The spelling of 8361691 in words is "eight million, three hundred sixty-one thousand, six hundred ninety-one".