106881989 has 8 divisors (see below), whose sum is σ = 112243200. Its totient is φ = 101580336.

The previous prime is 106881959. The next prime is 106881991. The reversal of 106881989 is 989188601.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 106881989 - 2¹² = 106877893 is a prime.

It is a super-2 number, since 2×106881989² = 22847519145192242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106881949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11189 + ... + 18410.

It is an arithmetic number, because the mean of its divisors is an integer number (14030400).

Almost surely, 2^106881989 is an apocalyptic number.

It is an amenable number.

106881989 is a deficient number, since it is larger than the sum of its proper divisors (5361211).

106881989 is a wasteful number, since it uses less digits than its factorization.

106881989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29779.

The product of its (nonzero) digits is 248832, while the sum is 50.

The square root of 106881989 is about 10338.3745821091. The cubic root of 106881989 is about 474.5713421807.

The spelling of 106881989 in words is "one hundred six million, eight hundred eighty-one thousand, nine hundred eighty-nine".