266760797 has 4 divisors (see below), whose sum is σ = 275366016. Its totient is φ = 258155580.

The previous prime is 266760773. The next prime is 266760803. The reversal of 266760797 is 797067662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 797067662 = 2 ⋅398533831.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266760797 is a prime.

It is a super-2 number, since 2×266760797² = 142322645632150418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266760727) 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, 4302563 + ... + 4302624.

It is an arithmetic number, because the mean of its divisors is an integer number (68841504).

Almost surely, 2^266760797 is an apocalyptic number.

It is an amenable number.

266760797 is a deficient number, since it is larger than the sum of its proper divisors (8605219).

266760797 is an equidigital number, since it uses as much as digits as its factorization.

266760797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8605218.

The product of its (nonzero) digits is 1333584, while the sum is 50.

The square root of 266760797 is about 16332.8135053334. The cubic root of 266760797 is about 643.7353156923.

The spelling of 266760797 in words is "two hundred sixty-six million, seven hundred sixty thousand, seven hundred ninety-seven".