268987797 has 40 divisors (see below), whose sum is σ = 434450016. Its totient is φ = 164874528.

The previous prime is 268987777. The next prime is 268987813. The reversal of 268987797 is 797789862.

It is not a de Polignac number, because 268987797 - 2¹¹ = 268985749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268987777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 491478 + ... + 492024.

Almost surely, 2^268987797 is an apocalyptic number.

268987797 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

268987797 is a deficient number, since it is larger than the sum of its proper divisors (165462219).

268987797 is a wasteful number, since it uses less digits than its factorization.

268987797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039 (or 1030 counting only the distinct ones).

The product of its digits is 21337344, while the sum is 63.

The square root of 268987797 is about 16400.8474476168. The cubic root of 268987797 is about 645.5217195824.

The spelling of 268987797 in words is "two hundred sixty-eight million, nine hundred eighty-seven thousand, seven hundred ninety-seven".