865713500 has 48 divisors (see below), whose sum is σ = 1905295392. Its totient is φ = 343616000.

The previous prime is 865713469. The next prime is 865713503. The reversal of 865713500 is 5317568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865713503) 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, 58892 + ... + 72108.

It is an arithmetic number, because the mean of its divisors is an integer number (39693654).

Almost surely, 2^865713500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 865713500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (952647696).

865713500 is an abundant number, since it is smaller than the sum of its proper divisors (1039581892).

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

865713500 is a wasteful number, since it uses less digits than its factorization.

865713500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13367 (or 13355 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 865713500 is about 29423.0097032917. The cubic root of 865713500 is about 953.0698477448.

The spelling of 865713500 in words is "eight hundred sixty-five million, seven hundred thirteen thousand, five hundred".