697928 has 48 divisors (see below), whose sum is σ = 1659840. Its totient is φ = 269280.

The previous prime is 697913. The next prime is 697937. The reversal of 697928 is 829796.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 697928.

It is an unprimeable number.

697928 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 11 ways as a sum of consecutive naturals, for example, 6725 + ... + 6827.

It is an arithmetic number, because the mean of its divisors is an integer number (34580).

2⁶⁹⁷⁹²⁸ 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 697928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (829920).

697928 is an abundant number, since it is smaller than the sum of its proper divisors (961912).

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

697928 is a wasteful number, since it uses less digits than its factorization.

697928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 123 counting only the distinct ones).

The product of its digits is 54432, while the sum is 41.

The square root of 697928 is about 835.4208520261. The cubic root of 697928 is about 88.7027070652.

It can be divided in two parts, 6979 and 28, that added together give a palindrome (7007).

The spelling of 697928 in words is "six hundred ninety-seven thousand, nine hundred twenty-eight".