865715382 has 24 divisors (see below), whose sum is σ = 2143676496. Its totient is φ = 247347216.

The previous prime is 865715353. The next prime is 865715407. The reversal of 865715382 is 283517568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3435253 + ... + 3435504.

It is an arithmetic number, because the mean of its divisors is an integer number (89319854).

Almost surely, 2^865715382 is an apocalyptic number.

865715382 is an abundant number, since it is smaller than the sum of its proper divisors (1277961114).

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

865715382 is a wasteful number, since it uses less digits than its factorization.

865715382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6870772 (or 6870769 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 865715382 is about 29423.0416850468. The cubic root of 865715382 is about 953.0705383798.

The spelling of 865715382 in words is "eight hundred sixty-five million, seven hundred fifteen thousand, three hundred eighty-two".