265740797 has 16 divisors (see below), whose sum is σ = 307795200. Its totient is φ = 224726400.

The previous prime is 265740767. The next prime is 265740799. The reversal of 265740797 is 797047562.

It is a cyclic number.

It is not a de Polignac number, because 265740797 - 2¹⁶ = 265675261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265740799) 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, 288704 + ... + 289622.

It is an arithmetic number, because the mean of its divisors is an integer number (19237200).

Almost surely, 2^265740797 is an apocalyptic number.

It is an amenable number.

265740797 is a deficient number, since it is larger than the sum of its proper divisors (42054403).

265740797 is a wasteful number, since it uses less digits than its factorization.

265740797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436.

The product of its (nonzero) digits is 740880, while the sum is 47.

The square root of 265740797 is about 16301.5581157140. The cubic root of 265740797 is about 642.9137948216.

The spelling of 265740797 in words is "two hundred sixty-five million, seven hundred forty thousand, seven hundred ninety-seven".