108663855 has 8 divisors (see below), whose sum is σ = 173862192. Its totient is φ = 57954048.

The previous prime is 108663839. The next prime is 108663871. The reversal of 108663855 is 558366801.

It is an interprime number because it is at equal distance from previous prime (108663839) and next prime (108663871).

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

It is not a de Polignac number, because 108663855 - 2⁴ = 108663839 is a prime.

It is a super-2 number, since 2×108663855² = 23615666766922050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3622114 + ... + 3622143.

It is an arithmetic number, because the mean of its divisors is an integer number (21732774).

Almost surely, 2^108663855 is an apocalyptic number.

108663855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

108663855 is a deficient number, since it is larger than the sum of its proper divisors (65198337).

108663855 is an equidigital number, since it uses as much as digits as its factorization.

108663855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7244265.

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 108663855 is about 10424.1956524233. The cubic root of 108663855 is about 477.1940677129.

The spelling of 108663855 in words is "one hundred eight million, six hundred sixty-three thousand, eight hundred fifty-five".