264497729 has 2 divisors, whose sum is σ = 264497730. Its totient is φ = 264497728.

The previous prime is 264497711. The next prime is 264497759. The reversal of 264497729 is 927794462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194323600 + 70174129 = 13940^2 + 8377^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264497729 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (264497759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132248864 + 132248865.

It is an arithmetic number, because the mean of its divisors is an integer number (132248865).

Almost surely, 2^264497729 is an apocalyptic number.

It is an amenable number.

264497729 is a deficient number, since it is larger than the sum of its proper divisors (1).

264497729 is an equidigital number, since it uses as much as digits as its factorization.

264497729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 50.

The square root of 264497729 is about 16263.3861480320. The cubic root of 264497729 is about 641.9097651409.

The spelling of 264497729 in words is "two hundred sixty-four million, four hundred ninety-seven thousand, seven hundred twenty-nine".