268713987 has 8 divisors (see below), whose sum is σ = 358361280. Its totient is φ = 179104680.

The previous prime is 268713961. The next prime is 268714003. The reversal of 268713987 is 789317862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-268713987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (268713937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21064 + ... + 31322.

It is an arithmetic number, because the mean of its divisors is an integer number (44795160).

Almost surely, 2^268713987 is an apocalyptic number.

268713987 is a deficient number, since it is larger than the sum of its proper divisors (89647293).

268713987 is a wasteful number, since it uses less digits than its factorization.

268713987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18993.

The product of its digits is 1016064, while the sum is 51.

The square root of 268713987 is about 16392.4978877534. The cubic root of 268713987 is about 645.3026138448.

The spelling of 268713987 in words is "two hundred sixty-eight million, seven hundred thirteen thousand, nine hundred eighty-seven".