106777889 has 4 divisors (see below), whose sum is σ = 106963524. Its totient is φ = 106592256.

The previous prime is 106777861. The next prime is 106777897. The reversal of 106777889 is 988777601.

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 77704225 + 29073664 = 8815^2 + 5392^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106777889 is a prime.

It is a super-2 number, since 2×106777889² = 22803035158592642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 106777889.

It is not an unprimeable number, because it can be changed into a prime (106777789) 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, 91952 + ... + 93105.

It is an arithmetic number, because the mean of its divisors is an integer number (26740881).

Almost surely, 2^106777889 is an apocalyptic number.

It is an amenable number.

106777889 is a deficient number, since it is larger than the sum of its proper divisors (185635).

106777889 is an equidigital number, since it uses as much as digits as its factorization.

106777889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185634.

The product of its (nonzero) digits is 1185408, while the sum is 53.

The square root of 106777889 is about 10333.3387150524. The cubic root of 106777889 is about 474.4172191619.

The spelling of 106777889 in words is "one hundred six million, seven hundred seventy-seven thousand, eight hundred eighty-nine".