103690 has 8 divisors (see below), whose sum is σ = 186660. Its totient is φ = 41472.

The previous prime is 103687. The next prime is 103699. The reversal of 103690 is 96301.

103690 = 142² + 143² + ... + 146².

It can be written as a sum of positive squares in 2 ways, for example, as 91809 + 11881 = 303^2 + 109^2 .

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

It is a super-2 number, since 2×103690² = 21503232200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (103699) 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, 5175 + ... + 5194.

2¹⁰³⁶⁹⁰ is an apocalyptic number.

103690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103690 is a deficient number, since it is larger than the sum of its proper divisors (82970).

103690 is a wasteful number, since it uses less digits than its factorization.

103690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10376.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 103690 is about 322.0093166354. The cubic root of 103690 is about 46.9799220111.

Adding to 103690 its reverse (96301), we get a palindrome (199991).

The spelling of 103690 in words is "one hundred three thousand, six hundred ninety".