868498489 has 8 divisors (see below), whose sum is σ = 871669512. Its totient is φ = 865334400.

The previous prime is 868498487. The next prime is 868498529. The reversal of 868498489 is 984894868.

868498489 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 4 ways, for example, as 437520889 + 430977600 = 20917^2 + 20760^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 868498489 - 2¹ = 868498487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 868498489.

It is not an unprimeable number, because it can be changed into a prime (868498481) 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, 391347 + ... + 393559.

It is an arithmetic number, because the mean of its divisors is an integer number (108958689).

Almost surely, 2^868498489 is an apocalyptic number.

It is an amenable number.

868498489 is a deficient number, since it is larger than the sum of its proper divisors (3171023).

868498489 is a wasteful number, since it uses less digits than its factorization.

868498489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467.

The product of its digits is 31850496, while the sum is 64.

The square root of 868498489 is about 29470.2984206133. The cubic root of 868498489 is about 954.0907581835.

The spelling of 868498489 in words is "eight hundred sixty-eight million, four hundred ninety-eight thousand, four hundred eighty-nine".