8971693 has 2 divisors, whose sum is σ = 8971694. Its totient is φ = 8971692.

The previous prime is 8971691. The next prime is 8971709. The reversal of 8971693 is 3961798.

8971693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4919524 + 4052169 = 2218^2 + 2013^2 .

It is a cyclic number.

It is not a de Polignac number, because 8971693 - 2¹ = 8971691 is a prime.

Together with 8971691, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8971691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4485846 + 4485847.

It is an arithmetic number, because the mean of its divisors is an integer number (4485847).

Almost surely, 2^8971693 is an apocalyptic number.

It is an amenable number.

8971693 is a deficient number, since it is larger than the sum of its proper divisors (1).

8971693 is an equidigital number, since it uses as much as digits as its factorization.

8971693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 43.

The square root of 8971693 is about 2995.2784511628. The cubic root of 8971693 is about 207.7900757419.

The spelling of 8971693 in words is "eight million, nine hundred seventy-one thousand, six hundred ninety-three".