23348981 has 2 divisors, whose sum is σ = 23348982. Its totient is φ = 23348980.

The previous prime is 23348959. The next prime is 23348987. The reversal of 23348981 is 18984332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21808900 + 1540081 = 4670^2 + 1241^2 .

It is a cyclic number.

It is not a de Polignac number, because 23348981 - 2⁶ = 23348917 is a prime.

It is a super-2 number, since 2×23348981² = 1090349827476722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23348987) 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, 11674490 + 11674491.

It is an arithmetic number, because the mean of its divisors is an integer number (11674491).

Almost surely, 2^23348981 is an apocalyptic number.

It is an amenable number.

23348981 is a deficient number, since it is larger than the sum of its proper divisors (1).

23348981 is an equidigital number, since it uses as much as digits as its factorization.

23348981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 23348981 is about 4832.0783313187. The cubic root of 23348981 is about 285.8178253667.

The spelling of 23348981 in words is "twenty-three million, three hundred forty-eight thousand, nine hundred eighty-one".