865330436 has 6 divisors (see below), whose sum is σ = 1514328270. Its totient is φ = 432665216.

The previous prime is 865330429. The next prime is 865330439. The reversal of 865330436 is 634033568.

It can be written as a sum of positive squares in only one way, i.e., 744198400 + 121132036 = 27280^2 + 11006^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 865330436.

It is not an unprimeable number, because it can be changed into a prime (865330439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108166301 + ... + 108166308.

It is an arithmetic number, because the mean of its divisors is an integer number (252388045).

Almost surely, 2^865330436 is an apocalyptic number.

It is an amenable number.

865330436 is a deficient number, since it is larger than the sum of its proper divisors (648997834).

865330436 is a wasteful number, since it uses less digits than its factorization.

865330436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216332613 (or 216332611 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 865330436 is about 29416.4993838492. The cubic root of 865330436 is about 952.9292544232.

The spelling of 865330436 in words is "eight hundred sixty-five million, three hundred thirty thousand, four hundred thirty-six".