690693 has 16 divisors (see below), whose sum is σ = 1010880. Its totient is φ = 417536.

The previous prime is 690689. The next prime is 690719. The reversal of 690693 is 396096.

It is a cyclic number.

It is not a de Polignac number, because 690693 - 2² = 690689 is a prime.

690693 is a lucky number.

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 690693.

It is not an unprimeable number, because it can be changed into a prime (690673) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1246 + ... + 1712.

It is an arithmetic number, because the mean of its divisors is an integer number (63180).

2⁶⁹⁰⁶⁹³ is an apocalyptic number.

It is an amenable number.

690693 is a deficient number, since it is larger than the sum of its proper divisors (320187).

690693 is a wasteful number, since it uses less digits than its factorization.

690693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 690693 is about 831.0794185877. The cubic root of 690693 is about 88.3951325780.

The spelling of 690693 in words is "six hundred ninety thousand, six hundred ninety-three".