865098 has 24 divisors (see below), whose sum is σ = 2019108. Its totient is φ = 266112.

The previous prime is 865091. The next prime is 865103. The reversal of 865098 is 890568.

865098 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 710649 + 154449 = 843^2 + 393^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 865098.

It is not an unprimeable number, because it can be changed into a prime (865091) by changing a digit.

865098 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1615 + ... + 2082.

2⁸⁶⁵⁰⁹⁸ is an apocalyptic number.

865098 is an abundant number, since it is smaller than the sum of its proper divisors (1154010).

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

865098 is a wasteful number, since it uses less digits than its factorization.

865098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3718 (or 3715 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 865098 is about 930.1064455212. The cubic root of 865098 is about 95.2843924824.

It can be divided in two parts, 86 and 5098, that added together give a square (5184 = 72²).

The spelling of 865098 in words is "eight hundred sixty-five thousand, ninety-eight".