108913680 has 80 divisors (see below), whose sum is σ = 375154560. Its totient is φ = 29043072.

The previous prime is 108913663. The next prime is 108913687. The reversal of 108913680 is 86319801.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×108913680² = 23724379382284800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (108913687) 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 in 15 ways as a sum of consecutive naturals, for example, 23052 + ... + 27371.

It is an arithmetic number, because the mean of its divisors is an integer number (4689432).

Almost surely, 2^108913680 is an apocalyptic number.

108913680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108913680 is an abundant number, since it is smaller than the sum of its proper divisors (266240880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108913680 is a wasteful number, since it uses less digits than its factorization.

108913680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50445 (or 50433 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 108913680 is about 10436.1717118875. The cubic root of 108913680 is about 477.5594874856.

The spelling of 108913680 in words is "one hundred eight million, nine hundred thirteen thousand, six hundred eighty".