23801971 has 2 divisors, whose sum is σ = 23801972. Its totient is φ = 23801970.

The previous prime is 23801933. The next prime is 23802001. The reversal of 23801971 is 17910832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23801971 - 2¹³ = 23793779 is a prime.

It is not a weakly prime, because it can be changed into another prime (23801171) 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, 11900985 + 11900986.

It is an arithmetic number, because the mean of its divisors is an integer number (11900986).

Almost surely, 2^23801971 is an apocalyptic number.

23801971 is a deficient number, since it is larger than the sum of its proper divisors (1).

23801971 is an equidigital number, since it uses as much as digits as its factorization.

23801971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 23801971 is about 4878.7263706832. The cubic root of 23801971 is about 287.6543685172.

The spelling of 23801971 in words is "twenty-three million, eight hundred one thousand, nine hundred seventy-one".