898687 has 4 divisors (see below), whose sum is σ = 917856. Its totient is φ = 879520.

The previous prime is 898673. The next prime is 898691. The reversal of 898687 is 786898.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 898687 - 2¹⁹ = 374399 is a prime.

It is a Duffinian number.

898687 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (898607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9514 + ... + 9607.

It is an arithmetic number, because the mean of its divisors is an integer number (229464).

2⁸⁹⁸⁶⁸⁷ is an apocalyptic number.

898687 is a deficient number, since it is larger than the sum of its proper divisors (19169).

898687 is a wasteful number, since it uses less digits than its factorization.

898687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19168.

The product of its digits is 193536, while the sum is 46.

The square root of 898687 is about 947.9910337129. The cubic root of 898687 is about 96.5019642186.

The spelling of 898687 in words is "eight hundred ninety-eight thousand, six hundred eighty-seven".