106646 has 4 divisors (see below), whose sum is σ = 159972. Its totient is φ = 53322.

The previous prime is 106637. The next prime is 106649. The reversal of 106646 is 646601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 646601 = 107 ⋅6043.

It is a super-2 number, since 2×106646² = 22746738632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106649) 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 as a sum of consecutive naturals, namely, 26660 + ... + 26663.

It is an arithmetic number, because the mean of its divisors is an integer number (39993).

2¹⁰⁶⁶⁴⁶ is an apocalyptic number.

106646 is a deficient number, since it is larger than the sum of its proper divisors (53326).

106646 is an equidigital number, since it uses as much as digits as its factorization.

106646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53325.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 106646 is about 326.5669915959. The cubic root of 106646 is about 47.4221809817.

The spelling of 106646 in words is "one hundred six thousand, six hundred forty-six".