264729397 has 2 divisors, whose sum is σ = 264729398. Its totient is φ = 264729396.

The previous prime is 264729391. The next prime is 264729419. The reversal of 264729397 is 793927462.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260693316 + 4036081 = 16146^2 + 2009^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264729397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 264729397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264729391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132364698 + 132364699.

It is an arithmetic number, because the mean of its divisors is an integer number (132364699).

Almost surely, 2^264729397 is an apocalyptic number.

It is an amenable number.

264729397 is a deficient number, since it is larger than the sum of its proper divisors (1).

264729397 is an equidigital number, since it uses as much as digits as its factorization.

264729397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 49.

The square root of 264729397 is about 16270.5069681310. The cubic root of 264729397 is about 642.0971222067.

The spelling of 264729397 in words is "two hundred sixty-four million, seven hundred twenty-nine thousand, three hundred ninety-seven".