8493691 has 4 divisors (see below), whose sum is σ = 8505000. Its totient is φ = 8482384.

The previous prime is 8493673. The next prime is 8493697. The reversal of 8493691 is 1963948.

8493691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8493691 - 2⁹ = 8493179 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8493697) 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, 4441 + ... + 6058.

It is an arithmetic number, because the mean of its divisors is an integer number (2126250).

Almost surely, 2^8493691 is an apocalyptic number.

8493691 is a deficient number, since it is larger than the sum of its proper divisors (11309).

8493691 is a wasteful number, since it uses less digits than its factorization.

8493691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11308.

The product of its digits is 46656, while the sum is 40.

The square root of 8493691 is about 2914.3937620027. The cubic root of 8493691 is about 204.0322501237.

The spelling of 8493691 in words is "eight million, four hundred ninety-three thousand, six hundred ninety-one".