690708 has 12 divisors (see below), whose sum is σ = 1611680. Its totient is φ = 230232.

The previous prime is 690689. The next prime is 690719. The reversal of 690708 is 807096.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

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 690708.

It is an unprimeable number.

690708 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, 28768 + ... + 28791.

2⁶⁹⁰⁷⁰⁸ is an apocalyptic number.

It is an amenable number.

690708 is an abundant number, since it is smaller than the sum of its proper divisors (920972).

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

690708 is a wasteful number, since it uses less digits than its factorization.

690708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57566 (or 57564 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 690708 is about 831.0884429470. The cubic root of 690708 is about 88.3957724752.

The spelling of 690708 in words is "six hundred ninety thousand, seven hundred eight".