10690 has 8 divisors (see below), whose sum is σ = 19260. Its totient is φ = 4272.

The previous prime is 10687. The next prime is 10691. The reversal of 10690 is 9601.

It can be written as a sum of positive squares in 2 ways, for example, as 10609 + 81 = 103^2 + 9^2 .

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

It is a super-2 number, since 2×10690² = 228552200, which contains 22 as substring.

It is a nialpdrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (10691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525 + ... + 544.

2¹⁰⁶⁹⁰ is an apocalyptic number.

10690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10690 is a deficient number, since it is larger than the sum of its proper divisors (8570).

10690 is a wasteful number, since it uses less digits than its factorization.

10690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 10690 is about 103.3924562045. The cubic root of 10690 is about 22.0288876715.

Subtracting from 10690 its reverse (9601), we obtain a square (1089 = 33²).

It can be divided in two parts, 106 and 90, that added together give a square (196 = 14²).

The spelling of 10690 in words is "ten thousand, six hundred ninety".