5690 has 8 divisors (see below), whose sum is σ = 10260.
Its totient is φ = 2272.
The previous prime is 5689. The next prime is 5693. The reversal of 5690 is 965.
5690 = 162 + 172 + ... + 272.
It can be written as a sum of positive squares in 2 ways, for example, as 5329 + 361 = 73^2 + 19^2
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-2 number, since 2×56902 = 64752200, which contains 22 as substring.
It is an alternating number because its digits alternate between odd and even.
It is a plaindrome in base 13.
It is a nialpdrome in base 9.
It is a zygodrome in base 9.
It is not an unprimeable number, because it can be changed into a prime (5693) 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 3 ways as a sum of consecutive naturals, for example, 275 + ... + 294.
25690 is an apocalyptic number.
5690 is a deficient number, since it is larger than the sum of its proper divisors (4570).
5690 is a wasteful number, since it uses less digits than its factorization.
5690 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 576.
The product of its (nonzero) digits is 270, while the sum is 20.
The square root of 5690 is about 75.4320886626.
The cubic root of 5690 is about 17.8527074699.
The spelling of 5690 in words is "five thousand, six hundred ninety".