698720 has 48 divisors (see below), whose sum is σ = 1805328. Its totient is φ = 253440.

The previous prime is 698713. The next prime is 698723. The reversal of 698720 is 27896.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a nialpdrome in base 16.

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 698720.

It is not an unprimeable number, because it can be changed into a prime (698723) by changing a digit.

698720 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 7 ways as a sum of consecutive naturals, for example, 1562 + ... + 1958.

It is an arithmetic number, because the mean of its divisors is an integer number (37611).

2⁶⁹⁸⁷²⁰ 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 698720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (902664).

698720 is an abundant number, since it is smaller than the sum of its proper divisors (1106608).

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

698720 is a wasteful number, since it uses less digits than its factorization.

698720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 698720 is about 835.8947302143. The cubic root of 698720 is about 88.7362472904.

It can be divided in two parts, 6987 and 20, that added together give a palindrome (7007).

The spelling of 698720 in words is "six hundred ninety-eight thousand, seven hundred twenty".