697966 has 8 divisors (see below), whose sum is σ = 1053864. Its totient is φ = 346680.

The previous prime is 697951. The next prime is 697967. The reversal of 697966 is 669796.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745 + ... + 1396.

It is an arithmetic number, because the mean of its divisors is an integer number (131733).

2⁶⁹⁷⁹⁶⁶ is an apocalyptic number.

697966 is a deficient number, since it is larger than the sum of its proper divisors (355898).

697966 is a wasteful number, since it uses less digits than its factorization.

697966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306.

The product of its digits is 122472, while the sum is 43.

The square root of 697966 is about 835.4435947447. The cubic root of 697966 is about 88.7043168978.

The spelling of 697966 in words is "six hundred ninety-seven thousand, nine hundred sixty-six".