23969971 has 2 divisors, whose sum is σ = 23969972. Its totient is φ = 23969970.

The previous prime is 23969951. The next prime is 23969993. The reversal of 23969971 is 17996932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23969971 - 2¹⁹ = 23445683 is a prime.

It is not a weakly prime, because it can be changed into another prime (23969941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11984985 + 11984986.

It is an arithmetic number, because the mean of its divisors is an integer number (11984986).

Almost surely, 2^23969971 is an apocalyptic number.

23969971 is a deficient number, since it is larger than the sum of its proper divisors (1).

23969971 is an equidigital number, since it uses as much as digits as its factorization.

23969971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 183708, while the sum is 46.

The square root of 23969971 is about 4895.9137043048. The cubic root of 23969971 is about 288.3295602062.

The spelling of 23969971 in words is "twenty-three million, nine hundred sixty-nine thousand, nine hundred seventy-one".