268604987 has 16 divisors (see below), whose sum is σ = 317650944. Its totient is φ = 222264000.

The previous prime is 268604983. The next prime is 268605013. The reversal of 268604987 is 789406862.

It is not a de Polignac number, because 268604987 - 2² = 268604983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268604983) 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 15 ways as a sum of consecutive naturals, for example, 105287 + ... + 107807.

It is an arithmetic number, because the mean of its divisors is an integer number (19853184).

Almost surely, 2^268604987 is an apocalyptic number.

268604987 is a deficient number, since it is larger than the sum of its proper divisors (49045957).

268604987 is a wasteful number, since it uses less digits than its factorization.

268604987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3050.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 268604987 is about 16389.1728589334. The cubic root of 268604987 is about 645.2153494411.

The spelling of 268604987 in words is "two hundred sixty-eight million, six hundred four thousand, nine hundred eighty-seven".