697120 has 24 divisors (see below), whose sum is σ = 1647324. Its totient is φ = 278784.

The previous prime is 697111. The next prime is 697121. The reversal of 697120 is 21796.

It can be written as a sum of positive squares in 2 ways, for example, as 633616 + 63504 = 796^2 + 252^2 .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (697121) by changing a digit.

697120 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2019 + ... + 2338.

2⁶⁹⁷¹²⁰ is an apocalyptic number.

It is an amenable number.

697120 is an abundant number, since it is smaller than the sum of its proper divisors (950204).

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

697120 is a wasteful number, since it uses less digits than its factorization.

697120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4372 (or 4364 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 697120 is about 834.9371233812. The cubic root of 697120 is about 88.6684631014.

The spelling of 697120 in words is "six hundred ninety-seven thousand, one hundred twenty".