64347923 has 2 divisors, whose sum is σ = 64347924. Its totient is φ = 64347922.

The previous prime is 64347893. The next prime is 64347953. The reversal of 64347923 is 32974346.

It is a balanced prime because it is at equal distance from previous prime (64347893) and next prime (64347953).

It is a cyclic number.

It is not a de Polignac number, because 64347923 - 2¹⁰ = 64346899 is a prime.

It is not a weakly prime, because it can be changed into another prime (64347953) 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, 32173961 + 32173962.

It is an arithmetic number, because the mean of its divisors is an integer number (32173962).

Almost surely, 2^64347923 is an apocalyptic number.

64347923 is a deficient number, since it is larger than the sum of its proper divisors (1).

64347923 is an equidigital number, since it uses as much as digits as its factorization.

64347923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 38.

The square root of 64347923 is about 8021.7157142347. The cubic root of 64347923 is about 400.7235300549.

The spelling of 64347923 in words is "sixty-four million, three hundred forty-seven thousand, nine hundred twenty-three".