264547823 has 2 divisors, whose sum is σ = 264547824. Its totient is φ = 264547822.

The previous prime is 264547813. The next prime is 264547937. The reversal of 264547823 is 328745462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264547823 - 2⁴ = 264547807 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264547813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132273911 + 132273912.

It is an arithmetic number, because the mean of its divisors is an integer number (132273912).

Almost surely, 2^264547823 is an apocalyptic number.

264547823 is a deficient number, since it is larger than the sum of its proper divisors (1).

264547823 is an equidigital number, since it uses as much as digits as its factorization.

264547823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 41.

The square root of 264547823 is about 16264.9261602997. The cubic root of 264547823 is about 641.9502869733.

The spelling of 264547823 in words is "two hundred sixty-four million, five hundred forty-seven thousand, eight hundred twenty-three".