266272897 has 16 divisors (see below), whose sum is σ = 309657600. Its totient is φ = 226409040.

The previous prime is 266272891. The next prime is 266272943. The reversal of 266272897 is 798272662.

It is not a de Polignac number, because 266272897 - 2³ = 266272889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 266272897.

It is not an unprimeable number, because it can be changed into a prime (266272891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8448 + ... + 24574.

It is an arithmetic number, because the mean of its divisors is an integer number (19353600).

Almost surely, 2^266272897 is an apocalyptic number.

It is an amenable number.

266272897 is a deficient number, since it is larger than the sum of its proper divisors (43384703).

266272897 is a wasteful number, since it uses less digits than its factorization.

266272897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16236.

The product of its digits is 1016064, while the sum is 49.

The square root of 266272897 is about 16317.8704799370. The cubic root of 266272897 is about 643.3426166402.

The spelling of 266272897 in words is "two hundred sixty-six million, two hundred seventy-two thousand, eight hundred ninety-seven".