690317 has 8 divisors (see below), whose sum is σ = 718200. Its totient is φ = 663040.

The previous prime is 690293. The next prime is 690323. The reversal of 690317 is 713096.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 121801 + 568516 = 349^2 + 754^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 690317 - 2¹⁸ = 428173 is a prime.

It is a Duffinian 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 690317.

It is not an unprimeable number, because it can be changed into a prime (690367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4559 + ... + 4707.

It is an arithmetic number, because the mean of its divisors is an integer number (89775).

2⁶⁹⁰³¹⁷ is an apocalyptic number.

It is an amenable number.

690317 is a deficient number, since it is larger than the sum of its proper divisors (27883).

690317 is a wasteful number, since it uses less digits than its factorization.

690317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 690317 is about 830.8531759583. The cubic root of 690317 is about 88.3790894625.

The spelling of 690317 in words is "six hundred ninety thousand, three hundred seventeen".