106908289 has 4 divisors (see below), whose sum is σ = 106967124. Its totient is φ = 106849456.

The previous prime is 106908227. The next prime is 106908293. The reversal of 106908289 is 982809601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36096064 + 70812225 = 6008^2 + 8415^2 .

It is a cyclic number.

It is not a de Polignac number, because 106908289 - 2⁷ = 106908161 is a prime.

It is a super-2 number, since 2×106908289² = 22858764513815042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106908299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26602 + ... + 30355.

It is an arithmetic number, because the mean of its divisors is an integer number (26741781).

Almost surely, 2^106908289 is an apocalyptic number.

It is an amenable number.

106908289 is a deficient number, since it is larger than the sum of its proper divisors (58835).

106908289 is an equidigital number, since it uses as much as digits as its factorization.

106908289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58834.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 106908289 is about 10339.6464639754. The cubic root of 106908289 is about 474.6102642442.

The spelling of 106908289 in words is "one hundred six million, nine hundred eight thousand, two hundred eighty-nine".