698816 has 28 divisors (see below), whose sum is σ = 1417320. Its totient is φ = 341760.

The previous prime is 698779. The next prime is 698821. The reversal of 698816 is 618896.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 698816.

It is a congruent number.

It is an unprimeable number.

698816 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, 3815 + ... + 3993.

2⁶⁹⁸⁸¹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 698816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (708660).

698816 is an abundant number, since it is smaller than the sum of its proper divisors (718504).

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

698816 is a wasteful number, since it uses less digits than its factorization.

698816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 242 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 698816 is about 835.9521517408. The cubic root of 698816 is about 88.7403110497.

The spelling of 698816 in words is "six hundred ninety-eight thousand, eight hundred sixteen".