264193717 has 2 divisors, whose sum is σ = 264193718. Its totient is φ = 264193716.

The previous prime is 264193703. The next prime is 264193739. The reversal of 264193717 is 717391462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214505316 + 49688401 = 14646^2 + 7049^2 .

It is a cyclic number.

It is not a de Polignac number, because 264193717 - 2¹⁹ = 263669429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 264193717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264193747) 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, 132096858 + 132096859.

It is an arithmetic number, because the mean of its divisors is an integer number (132096859).

Almost surely, 2^264193717 is an apocalyptic number.

It is an amenable number.

264193717 is a deficient number, since it is larger than the sum of its proper divisors (1).

264193717 is an equidigital number, since it uses as much as digits as its factorization.

264193717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 40.

The square root of 264193717 is about 16254.0369447101. The cubic root of 264193717 is about 641.6637351940.

The spelling of 264193717 in words is "two hundred sixty-four million, one hundred ninety-three thousand, seven hundred seventeen".