108289646 has 4 divisors (see below), whose sum is σ = 162434472. Its totient is φ = 54144822.

The previous prime is 108289637. The next prime is 108289661. The reversal of 108289646 is 646982801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 646982801 = 23 ⋅28129687.

It is a junction number, because it is equal to n+sod(n) for n = 108289597 and 108289606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27072410 + ... + 27072413.

It is an arithmetic number, because the mean of its divisors is an integer number (40608618).

Almost surely, 2^108289646 is an apocalyptic number.

108289646 is a deficient number, since it is larger than the sum of its proper divisors (54144826).

108289646 is an equidigital number, since it uses as much as digits as its factorization.

108289646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54144825.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 108289646 is about 10406.2311140970. The cubic root of 108289646 is about 476.6456618343.

The spelling of 108289646 in words is "one hundred eight million, two hundred eighty-nine thousand, six hundred forty-six".