266948897 has 4 divisors (see below), whose sum is σ = 266990100. Its totient is φ = 266907696.

The previous prime is 266948887. The next prime is 266948921. The reversal of 266948897 is 798849662.

266948897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 247244176 + 19704721 = 15724^2 + 4439^2 .

It is a cyclic number.

It is not a de Polignac number, because 266948897 - 2⁴ = 266948881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266948867) 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, 8522 + ... + 24627.

It is an arithmetic number, because the mean of its divisors is an integer number (66747525).

Almost surely, 2^266948897 is an apocalyptic number.

It is an amenable number.

266948897 is a deficient number, since it is larger than the sum of its proper divisors (41203).

266948897 is an equidigital number, since it uses as much as digits as its factorization.

266948897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41202.

The product of its digits is 10450944, while the sum is 59.

The square root of 266948897 is about 16338.5708371326. The cubic root of 266948897 is about 643.8865850004.

The spelling of 266948897 in words is "two hundred sixty-six million, nine hundred forty-eight thousand, eight hundred ninety-seven".