865852214 has 16 divisors (see below), whose sum is σ = 1329823440. Its totient is φ = 422590560.

The previous prime is 865852201. The next prime is 865852223. The reversal of 865852214 is 412258568.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248444 + ... + 251904.

It is an arithmetic number, because the mean of its divisors is an integer number (83113965).

Almost surely, 2^865852214 is an apocalyptic number.

865852214 is a deficient number, since it is larger than the sum of its proper divisors (463971226).

865852214 is a wasteful number, since it uses less digits than its factorization.

865852214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6415.

The product of its digits is 153600, while the sum is 41.

The square root of 865852214 is about 29425.3668456317. The cubic root of 865852214 is about 953.1207487532.

The spelling of 865852214 in words is "eight hundred sixty-five million, eight hundred fifty-two thousand, two hundred fourteen".