23420669 has 2 divisors, whose sum is σ = 23420670. Its totient is φ = 23420668.

The previous prime is 23420653. The next prime is 23420671. The reversal of 23420669 is 96602432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16728100 + 6692569 = 4090^2 + 2587^2 .

It is a cyclic number.

It is not a de Polignac number, because 23420669 - 2⁴ = 23420653 is a prime.

It is a super-2 number, since 2×23420669² = 1097055472815122, which contains 22 as substring.

Together with 23420671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23420629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11710334 + 11710335.

It is an arithmetic number, because the mean of its divisors is an integer number (11710335).

Almost surely, 2^23420669 is an apocalyptic number.

It is an amenable number.

23420669 is a deficient number, since it is larger than the sum of its proper divisors (1).

23420669 is an equidigital number, since it uses as much as digits as its factorization.

23420669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 23420669 is about 4839.4905723640. The cubic root of 23420669 is about 286.1100404634.

The spelling of 23420669 in words is "twenty-three million, four hundred twenty thousand, six hundred sixty-nine".