23289913 has 2 divisors, whose sum is σ = 23289914. Its totient is φ = 23289912.

The previous prime is 23289907. The next prime is 23289919. The reversal of 23289913 is 31998232.

It is a balanced prime because it is at equal distance from previous prime (23289907) and next prime (23289919).

It can be written as a sum of positive squares in only one way, i.e., 22915369 + 374544 = 4787^2 + 612^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23289913 is a prime.

It is not a weakly prime, because it can be changed into another prime (23289919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11644956 + 11644957.

It is an arithmetic number, because the mean of its divisors is an integer number (11644957).

Almost surely, 2^23289913 is an apocalyptic number.

It is an amenable number.

23289913 is a deficient number, since it is larger than the sum of its proper divisors (1).

23289913 is an equidigital number, since it uses as much as digits as its factorization.

23289913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 37.

The square root of 23289913 is about 4825.9623910677. The cubic root of 23289913 is about 285.5766022216.

The spelling of 23289913 in words is "twenty-three million, two hundred eighty-nine thousand, nine hundred thirteen".