698320 has 80 divisors (see below), whose sum is σ = 1964160. Its totient is φ = 225792.

The previous prime is 698311. The next prime is 698329. The reversal of 698320 is 23896.

698320 = 43² + 44² + ... + 129².

698320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (698311) and next prime (698329).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16219 + ... + 16261.

It is an arithmetic number, because the mean of its divisors is an integer number (24552).

2⁶⁹⁸³²⁰ 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 698320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (982080).

698320 is an abundant number, since it is smaller than the sum of its proper divisors (1265840).

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

698320 is a wasteful number, since it uses less digits than its factorization.

698320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 698320 is about 835.6554313831. The cubic root of 698320 is about 88.7193109524.

The spelling of 698320 in words is "six hundred ninety-eight thousand, three hundred twenty".