865852116 has 24 divisors (see below), whose sum is σ = 2126654880. Its totient is φ = 273426912.

The previous prime is 865852061. The next prime is 865852121. The reversal of 865852116 is 611258568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1898571 + ... + 1899026.

It is an arithmetic number, because the mean of its divisors is an integer number (88610620).

Almost surely, 2^865852116 is an apocalyptic number.

It is an amenable number.

865852116 is an abundant number, since it is smaller than the sum of its proper divisors (1260802764).

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

865852116 is a wasteful number, since it uses less digits than its factorization.

865852116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3797623 (or 3797621 counting only the distinct ones).

The product of its digits is 115200, while the sum is 42.

The square root of 865852116 is about 29425.3651804018. The cubic root of 865852116 is about 953.1207127941.

The spelling of 865852116 in words is "eight hundred sixty-five million, eight hundred fifty-two thousand, one hundred sixteen".