320423927 has 2 divisors, whose sum is σ = 320423928. Its totient is φ = 320423926.

The previous prime is 320423891. The next prime is 320423947. The reversal of 320423927 is 729324023.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320423927 - 2⁸ = 320423671 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320423893 and 320423902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320423947) 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, 160211963 + 160211964.

It is an arithmetic number, because the mean of its divisors is an integer number (160211964).

Almost surely, 2^320423927 is an apocalyptic number.

320423927 is a deficient number, since it is larger than the sum of its proper divisors (1).

320423927 is an equidigital number, since it uses as much as digits as its factorization.

320423927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 320423927 is about 17900.3890181191. The cubic root of 320423927 is about 684.2922891279.

The spelling of 320423927 in words is "three hundred twenty million, four hundred twenty-three thousand, nine hundred twenty-seven".