23068921 has 2 divisors, whose sum is σ = 23068922. Its totient is φ = 23068920.

The previous prime is 23068909. The next prime is 23068933. The reversal of 23068921 is 12986032.

It is a balanced prime because it is at equal distance from previous prime (23068909) and next prime (23068933).

It can be written as a sum of positive squares in only one way, i.e., 19900521 + 3168400 = 4461^2 + 1780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23068921 is a prime.

It is a super-2 number, since 2×23068921² = 1064350232208482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23068951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11534460 + 11534461.

It is an arithmetic number, because the mean of its divisors is an integer number (11534461).

Almost surely, 2^23068921 is an apocalyptic number.

It is an amenable number.

23068921 is a deficient number, since it is larger than the sum of its proper divisors (1).

23068921 is an equidigital number, since it uses as much as digits as its factorization.

23068921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 23068921 is about 4803.0116593654. The cubic root of 23068921 is about 284.6704758165.

The spelling of 23068921 in words is "twenty-three million, sixty-eight thousand, nine hundred twenty-one".