260777493 has 6 divisors (see below), whose sum is σ = 376678614. Its totient is φ = 173851656.

The previous prime is 260777459. The next prime is 260777513. The reversal of 260777493 is 394777062.

It is a happy number.

260777493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 225991089 + 34786404 = 15033^2 + 5898^2 .

It is not a de Polignac number, because 260777493 - 2²¹ = 258680341 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260777593) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14487630 + ... + 14487647.

It is an arithmetic number, because the mean of its divisors is an integer number (62779769).

Almost surely, 2^260777493 is an apocalyptic number.

It is an amenable number.

260777493 is a deficient number, since it is larger than the sum of its proper divisors (115901121).

260777493 is a wasteful number, since it uses less digits than its factorization.

260777493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28975283 (or 28975280 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 45.

The square root of 260777493 is about 16148.6065343112. The cubic root of 260777493 is about 638.8859958107.

The spelling of 260777493 in words is "two hundred sixty million, seven hundred seventy-seven thousand, four hundred ninety-three".