865028738 has 16 divisors (see below), whose sum is σ = 1492862400. Its totient is φ = 368237616.

The previous prime is 865028737. The next prime is 865028753. The reversal of 865028738 is 837820568.

It is a junction number, because it is equal to n+sod(n) for n = 865028692 and 865028701.

It is not an unprimeable number, because it can be changed into a prime (865028737) 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, 205256 + ... + 209427.

It is an arithmetic number, because the mean of its divisors is an integer number (93303900).

Almost surely, 2^865028738 is an apocalyptic number.

865028738 is a deficient number, since it is larger than the sum of its proper divisors (627833662).

865028738 is a wasteful number, since it uses less digits than its factorization.

865028738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414841.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 865028738 is about 29411.3708963047. The cubic root of 865028738 is about 952.8184950890.

The spelling of 865028738 in words is "eight hundred sixty-five million, twenty-eight thousand, seven hundred thirty-eight".