698880 has 160 divisors (see below), whose sum is σ = 2749824. Its totient is φ = 147456.

The previous prime is 698849. The next prime is 698891. The reversal of 698880 is 88896.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an Ulam number.

It is a nialpdrome in base 4 and base 16.

It is a zygodrome in base 4 and base 16.

It is a congruent number.

It is an unprimeable number.

698880 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 15 ways as a sum of consecutive naturals, for example, 53754 + ... + 53766.

2⁶⁹⁸⁸⁸⁰ is an apocalyptic number.

698880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 698880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1374912).

698880 is an abundant number, since it is smaller than the sum of its proper divisors (2050944).

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

698880 is a wasteful number, since it uses less digits than its factorization.

698880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 698880 is about 835.9904305672. The cubic root of 698880 is about 88.7430200158.

The spelling of 698880 in words is "six hundred ninety-eight thousand, eight hundred eighty".