864860199 has 16 divisors (see below), whose sum is σ = 1321282560. Its totient is φ = 492930720.

The previous prime is 864860189. The next prime is 864860209. The reversal of 864860199 is 991068468.

It is a happy number.

864860199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (864860189) and next prime (864860209).

It is not a de Polignac number, because 864860199 - 2⁵ = 864860167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864860119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44767 + ... + 61104.

It is an arithmetic number, because the mean of its divisors is an integer number (82580160).

Almost surely, 2^864860199 is an apocalyptic number.

864860199 is a deficient number, since it is larger than the sum of its proper divisors (456422361).

864860199 is a wasteful number, since it uses less digits than its factorization.

864860199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106270.

The product of its (nonzero) digits is 746496, while the sum is 51.

The square root of 864860199 is about 29408.5055553661. The cubic root of 864860199 is about 952.7566098592.

The spelling of 864860199 in words is "eight hundred sixty-four million, eight hundred sixty thousand, one hundred ninety-nine".