697761 has 16 divisors (see below), whose sum is σ = 1059520. Its totient is φ = 453600.

The previous prime is 697759. The next prime is 697787. The reversal of 697761 is 167796.

697761 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 697761 - 2¹ = 697759 is a prime.

697761 is strictly pandigital in base 7.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (697261) 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, 861 + ... + 1461.

It is an arithmetic number, because the mean of its divisors is an integer number (66220).

2⁶⁹⁷⁷⁶¹ is an apocalyptic number.

It is an amenable number.

697761 is a deficient number, since it is larger than the sum of its proper divisors (361759).

697761 is a wasteful number, since it uses less digits than its factorization.

697761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653 (or 647 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 697761 is about 835.3208964224. The cubic root of 697761 is about 88.6956315819.

The spelling of 697761 in words is "six hundred ninety-seven thousand, seven hundred sixty-one".