108991363 has 8 divisors (see below), whose sum is σ = 117464256. Its totient is φ = 100531200.

The previous prime is 108991361. The next prime is 108991397. The reversal of 108991363 is 363199801.

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

It is a cyclic number.

It is not a de Polignac number, because 108991363 - 2¹ = 108991361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108991361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22083 + ... + 26563.

It is an arithmetic number, because the mean of its divisors is an integer number (14683032).

Almost surely, 2^108991363 is an apocalyptic number.

108991363 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

108991363 is a deficient number, since it is larger than the sum of its proper divisors (8472893).

108991363 is a wasteful number, since it uses less digits than its factorization.

108991363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6365.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 108991363 is about 10439.8928634350. The cubic root of 108991363 is about 477.6730007345.

The spelling of 108991363 in words is "one hundred eight million, nine hundred ninety-one thousand, three hundred sixty-three".