898869 has 4 divisors (see below), whose sum is σ = 1198496. Its totient is φ = 599244.

The previous prime is 898867. The next prime is 898873. The reversal of 898869 is 968898.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 898869 - 2¹ = 898867 is a prime.

It is a super-2 number, since 2×898869² = 1615930958322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (898867) 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 3 ways as a sum of consecutive naturals, for example, 149809 + ... + 149814.

It is an arithmetic number, because the mean of its divisors is an integer number (299624).

2⁸⁹⁸⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

898869 is a deficient number, since it is larger than the sum of its proper divisors (299627).

898869 is a wasteful number, since it uses less digits than its factorization.

898869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299626.

The product of its digits is 248832, while the sum is 48.

The square root of 898869 is about 948.0870213224. The cubic root of 898869 is about 96.5084782299.

The spelling of 898869 in words is "eight hundred ninety-eight thousand, eight hundred sixty-nine".