64423459 has 2 divisors, whose sum is σ = 64423460. Its totient is φ = 64423458.

The previous prime is 64423453. The next prime is 64423477. The reversal of 64423459 is 95432446.

It is a happy number.

64423459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64423459 - 2⁵ = 64423427 is a prime.

It is not a weakly prime, because it can be changed into another prime (64423453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32211729 + 32211730.

It is an arithmetic number, because the mean of its divisors is an integer number (32211730).

Almost surely, 2^64423459 is an apocalyptic number.

64423459 is a deficient number, since it is larger than the sum of its proper divisors (1).

64423459 is an equidigital number, since it uses as much as digits as its factorization.

64423459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 37.

The square root of 64423459 is about 8026.4225530432. The cubic root of 64423459 is about 400.8802676511.

The spelling of 64423459 in words is "sixty-four million, four hundred twenty-three thousand, four hundred fifty-nine".