268806387 has 8 divisors (see below), whose sum is σ = 358502400. Its totient is φ = 179157320.

The previous prime is 268806361. The next prime is 268806389. The reversal of 268806387 is 783608862.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 268806387 - 2⁷ = 268806259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (268806389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5062 + ... + 23732.

It is an arithmetic number, because the mean of its divisors is an integer number (44812800).

Almost surely, 2^268806387 is an apocalyptic number.

268806387 is a deficient number, since it is larger than the sum of its proper divisors (89696013).

268806387 is a wasteful number, since it uses less digits than its factorization.

268806387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23473.

The product of its (nonzero) digits is 774144, while the sum is 48.

The square root of 268806387 is about 16395.3160079335. The cubic root of 268806387 is about 645.3765699610.

The spelling of 268806387 in words is "two hundred sixty-eight million, eight hundred six thousand, three hundred eighty-seven".