898765 has 8 divisors (see below), whose sum is σ = 1232640. Its totient is φ = 616272.

The previous prime is 898763. The next prime is 898769. The reversal of 898765 is 567898.

It is a happy number.

898765 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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 898765 - 2¹ = 898763 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (898763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12805 + ... + 12874.

It is an arithmetic number, because the mean of its divisors is an integer number (154080).

2⁸⁹⁸⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

898765 is a deficient number, since it is larger than the sum of its proper divisors (333875).

898765 is a wasteful number, since it uses less digits than its factorization.

898765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25691.

The product of its digits is 120960, while the sum is 43.

The square root of 898765 is about 948.0321724499. The cubic root of 898765 is about 96.5047560454.

The spelling of 898765 in words is "eight hundred ninety-eight thousand, seven hundred sixty-five".