264696517 has 2 divisors, whose sum is σ = 264696518. Its totient is φ = 264696516.

The previous prime is 264696473. The next prime is 264696529. The reversal of 264696517 is 715696462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138156516 + 126540001 = 11754^2 + 11249^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264696517 is a prime.

It is a super-2 number, since 2×264696517² = 140128492223862578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264696547) 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, 132348258 + 132348259.

It is an arithmetic number, because the mean of its divisors is an integer number (132348259).

Almost surely, 2^264696517 is an apocalyptic number.

It is an amenable number.

264696517 is a deficient number, since it is larger than the sum of its proper divisors (1).

264696517 is an equidigital number, since it uses as much as digits as its factorization.

264696517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 46.

The square root of 264696517 is about 16269.4965195608. The cubic root of 264696517 is about 642.0705377930.

The spelling of 264696517 in words is "two hundred sixty-four million, six hundred ninety-six thousand, five hundred seventeen".