346578923 has 2 divisors, whose sum is σ = 346578924. Its totient is φ = 346578922.

The previous prime is 346578899. The next prime is 346579001. The reversal of 346578923 is 329875643.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 346578923 - 2¹⁰ = 346577899 is a prime.

It is not a weakly prime, because it can be changed into another prime (346578823) 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, 173289461 + 173289462.

It is an arithmetic number, because the mean of its divisors is an integer number (173289462).

Almost surely, 2^346578923 is an apocalyptic number.

346578923 is a deficient number, since it is larger than the sum of its proper divisors (1).

346578923 is an equidigital number, since it uses as much as digits as its factorization.

346578923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 47.

The square root of 346578923 is about 18616.6302804777. The cubic root of 346578923 is about 702.4262224163.

The spelling of 346578923 in words is "three hundred forty-six million, five hundred seventy-eight thousand, nine hundred twenty-three".