697760 has 72 divisors (see below), whose sum is σ = 1939140. Its totient is φ = 236544.

The previous prime is 697759. The next prime is 697787. The reversal of 697760 is 67796.

It can be written as a sum of positive squares in 2 ways, for example, as 659344 + 38416 = 812^2 + 196^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 697760.

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 697760.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7796 + ... + 7884.

2⁶⁹⁷⁷⁶⁰ 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 697760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (969570).

697760 is an abundant number, since it is smaller than the sum of its proper divisors (1241380).

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

697760 is a wasteful number, since it uses less digits than its factorization.

697760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 697760 is about 835.3202978499. The cubic root of 697760 is about 88.6955892103.

The spelling of 697760 in words is "six hundred ninety-seven thousand, seven hundred sixty".