698887 has 12 divisors (see below), whose sum is σ = 861840. Its totient is φ = 563136.

The previous prime is 698849. The next prime is 698891. The reversal of 698887 is 788896.

It is not a de Polignac number, because 698887 - 2¹⁵ = 666119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 414 + ... + 1252.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

2⁶⁹⁸⁸⁸⁷ is an apocalyptic number.

698887 is a deficient number, since it is larger than the sum of its proper divisors (162953).

698887 is a wasteful number, since it uses less digits than its factorization.

698887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 863 counting only the distinct ones).

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

The square root of 698887 is about 835.9946172076. The cubic root of 698887 is about 88.7433162989.

Subtracting 698887 from its reverse (788896), we obtain a palindrome (90009).

The spelling of 698887 in words is "six hundred ninety-eight thousand, eight hundred eighty-seven".