106990 has 16 divisors (see below), whose sum is σ = 207648. Its totient is φ = 39456.

The previous prime is 106979. The next prime is 106993. The reversal of 106990 is 99601.

It is a super-2 number, since 2×106990² = 22893720200, which contains 22 as substring.

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 106990.

It is not an unprimeable number, because it can be changed into a prime (106993) by changing a digit.

106990 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282 + ... + 541.

It is an arithmetic number, because the mean of its divisors is an integer number (12978).

2¹⁰⁶⁹⁹⁰ is an apocalyptic number.

106990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

106990 is a deficient number, since it is larger than the sum of its proper divisors (100658).

106990 is a wasteful number, since it uses less digits than its factorization.

106990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 106990 is about 327.0932588728. The cubic root of 106990 is about 47.4731149798.

The spelling of 106990 in words is "one hundred six thousand, nine hundred ninety".