23971693 has 2 divisors, whose sum is σ = 23971694. Its totient is φ = 23971692.

The previous prime is 23971691. The next prime is 23971697. The reversal of 23971693 is 39617932.

23971693 is nontrivially palindromic in base 2.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16670889 + 7300804 = 4083^2 + 2702^2 .

It is a cyclic number.

It is not a de Polignac number, because 23971693 - 2¹ = 23971691 is a prime.

Together with 23971691, 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 (23971691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11985846 + 11985847.

It is an arithmetic number, because the mean of its divisors is an integer number (11985847).

Almost surely, 2^23971693 is an apocalyptic number.

It is an amenable number.

23971693 is a deficient number, since it is larger than the sum of its proper divisors (1).

23971693 is an equidigital number, since it uses as much as digits as its factorization.

23971693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 40.

The square root of 23971693 is about 4896.0895620893. The cubic root of 23971693 is about 288.3364645618.

The spelling of 23971693 in words is "twenty-three million, nine hundred seventy-one thousand, six hundred ninety-three".