23971061 has 2 divisors, whose sum is σ = 23971062. Its totient is φ = 23971060.

The previous prime is 23971043. The next prime is 23971063. The reversal of 23971061 is 16017932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19412836 + 4558225 = 4406^2 + 2135^2 .

It is a cyclic number.

It is not a de Polignac number, because 23971061 - 2⁶ = 23970997 is a prime.

It is a super-2 number, since 2×23971061² = 1149223530931442, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 23971063, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23971063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11985530 + 11985531.

It is an arithmetic number, because the mean of its divisors is an integer number (11985531).

Almost surely, 2^23971061 is an apocalyptic number.

It is an amenable number.

23971061 is a deficient number, since it is larger than the sum of its proper divisors (1).

23971061 is an equidigital number, since it uses as much as digits as its factorization.

23971061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 23971061 is about 4896.0250203609. The cubic root of 23971061 is about 288.3339305975. Note that the first 3 decimals are identical.

Adding to 23971061 its reverse (16017932), we get a palindrome (39988993).

The spelling of 23971061 in words is "twenty-three million, nine hundred seventy-one thousand, sixty-one".