264664723 has 2 divisors, whose sum is σ = 264664724. Its totient is φ = 264664722.

The previous prime is 264664711. The next prime is 264664769. The reversal of 264664723 is 327466462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264664723 - 2¹³ = 264656531 is a prime.

It is not a weakly prime, because it can be changed into another prime (264664793) 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, 132332361 + 132332362.

It is an arithmetic number, because the mean of its divisors is an integer number (132332362).

Almost surely, 2^264664723 is an apocalyptic number.

264664723 is a deficient number, since it is larger than the sum of its proper divisors (1).

264664723 is an equidigital number, since it uses as much as digits as its factorization.

264664723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 40.

The square root of 264664723 is about 16268.5193856110. The cubic root of 264664723 is about 642.0448293473.

The spelling of 264664723 in words is "two hundred sixty-four million, six hundred sixty-four thousand, seven hundred twenty-three".