260838497 has 4 divisors (see below), whose sum is σ = 276181956. Its totient is φ = 245495040.

The previous prime is 260838481. The next prime is 260838509. The reversal of 260838497 is 794838062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 794838062 = 2 ⋅397419031.

It can be written as a sum of positive squares in 2 ways, for example, as 146797456 + 114041041 = 12116^2 + 10679^2 .

It is a cyclic number.

It is not a de Polignac number, because 260838497 - 2⁴ = 260838481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260838427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7671704 + ... + 7671737.

It is an arithmetic number, because the mean of its divisors is an integer number (69045489).

Almost surely, 2^260838497 is an apocalyptic number.

It is an amenable number.

260838497 is a deficient number, since it is larger than the sum of its proper divisors (15343459).

260838497 is a wasteful number, since it uses less digits than its factorization.

260838497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15343458.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 260838497 is about 16150.4952555641. The cubic root of 260838497 is about 638.9358103891.

The spelling of 260838497 in words is "two hundred sixty million, eight hundred thirty-eight thousand, four hundred ninety-seven".