264684817 has 2 divisors, whose sum is σ = 264684818. Its totient is φ = 264684816.

The previous prime is 264684731. The next prime is 264684821. The reversal of 264684817 is 718486462.

264684817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252301456 + 12383361 = 15884^2 + 3519^2 .

It is a cyclic number.

It is not a de Polignac number, because 264684817 - 2²⁷ = 130467089 is a prime.

It is not a weakly prime, because it can be changed into another prime (264684317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132342408 + 132342409.

It is an arithmetic number, because the mean of its divisors is an integer number (132342409).

Almost surely, 2^264684817 is an apocalyptic number.

It is an amenable number.

264684817 is a deficient number, since it is larger than the sum of its proper divisors (1).

264684817 is an equidigital number, since it uses as much as digits as its factorization.

264684817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 516096, while the sum is 46.

The square root of 264684817 is about 16269.1369469926. The cubic root of 264684817 is about 642.0610774796.

The spelling of 264684817 in words is "two hundred sixty-four million, six hundred eighty-four thousand, eight hundred seventeen".