8656423 has 2 divisors, whose sum is σ = 8656424. Its totient is φ = 8656422.

The previous prime is 8656411. The next prime is 8656433. The reversal of 8656423 is 3246568.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8656423 - 2¹⁷ = 8525351 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8656433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4328211 + 4328212.

It is an arithmetic number, because the mean of its divisors is an integer number (4328212).

Almost surely, 2^8656423 is an apocalyptic number.

8656423 is a deficient number, since it is larger than the sum of its proper divisors (1).

8656423 is an equidigital number, since it uses as much as digits as its factorization.

8656423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 8656423 is about 2942.1799741008. The cubic root of 8656423 is about 205.3270448989.

The spelling of 8656423 in words is "eight million, six hundred fifty-six thousand, four hundred twenty-three".