698864 has 20 divisors (see below), whose sum is σ = 1398720. Its totient is φ = 337920.

The previous prime is 698849. The next prime is 698891. The reversal of 698864 is 468896.

698864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

698864 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 698864.

It is an unprimeable number.

698864 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209 + ... + 1200.

It is an arithmetic number, because the mean of its divisors is an integer number (69936).

2⁶⁹⁸⁸⁶⁴ is an apocalyptic number.

It is an amenable number.

698864 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

698864 is a wasteful number, since it uses less digits than its factorization.

698864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448 (or 1442 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The square root of 698864 is about 835.9808610249. The cubic root of 698864 is about 88.7423427897.

The spelling of 698864 in words is "six hundred ninety-eight thousand, eight hundred sixty-four".