260781297 has 16 divisors (see below), whose sum is σ = 397731840. Its totient is φ = 148886352.

The previous prime is 260781259. The next prime is 260781317. The reversal of 260781297 is 792187062.

It is not a de Polignac number, because 260781297 - 2¹² = 260777201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (260781247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22104 + ... + 31782.

It is an arithmetic number, because the mean of its divisors is an integer number (24858240).

Almost surely, 2^260781297 is an apocalyptic number.

It is an amenable number.

260781297 is a deficient number, since it is larger than the sum of its proper divisors (136950543).

260781297 is a wasteful number, since it uses less digits than its factorization.

260781297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10972.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 260781297 is about 16148.7243149420. The cubic root of 260781297 is about 638.8891023039.

The spelling of 260781297 in words is "two hundred sixty million, seven hundred eighty-one thousand, two hundred ninety-seven".