266798949 has 16 divisors (see below), whose sum is σ = 360806400. Its totient is φ = 175341056.

The previous prime is 266798947. The next prime is 266798951. The reversal of 266798949 is 949897662.

It is an interprime number because it is at equal distance from previous prime (266798947) and next prime (266798951).

It is a cyclic number.

It is not a de Polignac number, because 266798949 - 2¹ = 266798947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 266798892 and 266798901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266798947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100957 + ... + 103565.

It is an arithmetic number, because the mean of its divisors is an integer number (22550400).

Almost surely, 2^266798949 is an apocalyptic number.

It is an amenable number.

266798949 is a deficient number, since it is larger than the sum of its proper divisors (94007451).

266798949 is a wasteful number, since it uses less digits than its factorization.

266798949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3084.

The product of its digits is 11757312, while the sum is 60.

The square root of 266798949 is about 16333.9814191152. The cubic root of 266798949 is about 643.7660031338.

The spelling of 266798949 in words is "two hundred sixty-six million, seven hundred ninety-eight thousand, nine hundred forty-nine".