108611669 has 2 divisors, whose sum is σ = 108611670. Its totient is φ = 108611668.

The previous prime is 108611647. The next prime is 108611719. The reversal of 108611669 is 966116801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107019025 + 1592644 = 10345^2 + 1262^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108611669 is a prime.

It is a super-2 number, since 2×108611669² = 23592989285931122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108611609) 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 as a sum of consecutive naturals, namely, 54305834 + 54305835.

It is an arithmetic number, because the mean of its divisors is an integer number (54305835).

Almost surely, 2^108611669 is an apocalyptic number.

It is an amenable number.

108611669 is a deficient number, since it is larger than the sum of its proper divisors (1).

108611669 is an equidigital number, since it uses as much as digits as its factorization.

108611669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 108611669 is about 10421.6922330301. The cubic root of 108611669 is about 477.1176643949.

The spelling of 108611669 in words is "one hundred eight million, six hundred eleven thousand, six hundred sixty-nine".