260929897 has 2 divisors, whose sum is σ = 260929898. Its totient is φ = 260929896.

The previous prime is 260929873. The next prime is 260929909. The reversal of 260929897 is 798929062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152374336 + 108555561 = 12344^2 + 10419^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260929897 is a prime.

It is a super-2 number, since 2×260929897² = 136168822296861218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (260929807) 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, 130464948 + 130464949.

It is an arithmetic number, because the mean of its divisors is an integer number (130464949).

Almost surely, 2^260929897 is an apocalyptic number.

It is an amenable number.

260929897 is a deficient number, since it is larger than the sum of its proper divisors (1).

260929897 is an equidigital number, since it uses as much as digits as its factorization.

260929897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 260929897 is about 16153.3246423143. The cubic root of 260929897 is about 639.0104311652.

The spelling of 260929897 in words is "two hundred sixty million, nine hundred twenty-nine thousand, eight hundred ninety-seven".