864872683 has 4 divisors (see below), whose sum is σ = 876720328. Its totient is φ = 853025040.

The previous prime is 864872677. The next prime is 864872707. The reversal of 864872683 is 386278468.

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 864872683 - 2¹³ = 864864491 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 864872683.

It is not an unprimeable number, because it can be changed into a prime (864872633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5923713 + ... + 5923858.

It is an arithmetic number, because the mean of its divisors is an integer number (219180082).

Almost surely, 2^864872683 is an apocalyptic number.

864872683 is a deficient number, since it is larger than the sum of its proper divisors (11847645).

864872683 is a wasteful number, since it uses less digits than its factorization.

864872683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11847644.

The product of its digits is 3096576, while the sum is 52.

The square root of 864872683 is about 29408.7178061200. The cubic root of 864872683 is about 952.7611940900.

The spelling of 864872683 in words is "eight hundred sixty-four million, eight hundred seventy-two thousand, six hundred eighty-three".