864215202 has 16 divisors (see below), whose sum is σ = 1803579840. Its totient is φ = 275546832.

The previous prime is 864215159. The next prime is 864215203. The reversal of 864215202 is 202512468.

It is a self number, because there is not a number n which added to its sum of digits gives 864215202.

It is not an unprimeable number, because it can be changed into a prime (864215203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3131077 + ... + 3131352.

It is an arithmetic number, because the mean of its divisors is an integer number (112723740).

Almost surely, 2^864215202 is an apocalyptic number.

864215202 is an abundant number, since it is smaller than the sum of its proper divisors (939364638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

864215202 is a wasteful number, since it uses less digits than its factorization.

864215202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6262457.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 864215202 is about 29397.5373458390. The cubic root of 864215202 is about 952.5197014408.

The spelling of 864215202 in words is "eight hundred sixty-four million, two hundred fifteen thousand, two hundred two".