866288967 has 4 divisors (see below), whose sum is σ = 1155051960. Its totient is φ = 577525976.

The previous prime is 866288939. The next prime is 866288981. The reversal of 866288967 is 769882668.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 866288967 - 2⁸ = 866288711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 866288967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866288867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144381492 + ... + 144381497.

It is an arithmetic number, because the mean of its divisors is an integer number (288762990).

Almost surely, 2^866288967 is an apocalyptic number.

866288967 is a deficient number, since it is larger than the sum of its proper divisors (288762993).

866288967 is a wasteful number, since it uses less digits than its factorization.

866288967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288762992.

The product of its digits is 13934592, while the sum is 60.

The square root of 866288967 is about 29432.7872788154. The cubic root of 866288967 is about 953.2809794740.

The spelling of 866288967 in words is "eight hundred sixty-six million, two hundred eighty-eight thousand, nine hundred sixty-seven".