23285389 has 2 divisors, whose sum is σ = 23285390. Its totient is φ = 23285388.

The previous prime is 23285377. The next prime is 23285399. The reversal of 23285389 is 98358232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21206025 + 2079364 = 4605^2 + 1442^2 .

It is a cyclic number.

It is not a de Polignac number, because 23285389 - 2⁵ = 23285357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23285399) 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, 11642694 + 11642695.

It is an arithmetic number, because the mean of its divisors is an integer number (11642695).

Almost surely, 2^23285389 is an apocalyptic number.

It is an amenable number.

23285389 is a deficient number, since it is larger than the sum of its proper divisors (1).

23285389 is an equidigital number, since it uses as much as digits as its factorization.

23285389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 40.

The square root of 23285389 is about 4825.4936535032. The cubic root of 23285389 is about 285.5581102073.

The spelling of 23285389 in words is "twenty-three million, two hundred eighty-five thousand, three hundred eighty-nine".