108663911 has 4 divisors (see below), whose sum is σ = 109233024. Its totient is φ = 108094800.

The previous prime is 108663871. The next prime is 108663917. The reversal of 108663911 is 119366801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 119366801 = 1297 ⋅92033.

It is a cyclic number.

It is not a de Polignac number, because 108663911 - 2¹⁸ = 108401767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108663917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284270 + ... + 284651.

It is an arithmetic number, because the mean of its divisors is an integer number (27308256).

Almost surely, 2^108663911 is an apocalyptic number.

108663911 is a deficient number, since it is larger than the sum of its proper divisors (569113).

108663911 is an equidigital number, since it uses as much as digits as its factorization.

108663911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569112.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 108663911 is about 10424.1983384815. The cubic root of 108663911 is about 477.1941496870.

The spelling of 108663911 in words is "one hundred eight million, six hundred sixty-three thousand, nine hundred eleven".