864882663 has 4 divisors (see below), whose sum is σ = 1153176888. Its totient is φ = 576588440.

The previous prime is 864882661. The next prime is 864882691. The reversal of 864882663 is 366288468.

It is a happy number.

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 864882663 - 2¹ = 864882661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864882661) 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, 144147108 + ... + 144147113.

It is an arithmetic number, because the mean of its divisors is an integer number (288294222).

Almost surely, 2^864882663 is an apocalyptic number.

864882663 is a deficient number, since it is larger than the sum of its proper divisors (288294225).

864882663 is a wasteful number, since it uses less digits than its factorization.

864882663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288294224.

The product of its digits is 2654208, while the sum is 51.

The square root of 864882663 is about 29408.8874832082. The cubic root of 864882663 is about 952.7648587990.

The spelling of 864882663 in words is "eight hundred sixty-four million, eight hundred eighty-two thousand, six hundred sixty-three".