108857780 has 18 divisors (see below), whose sum is σ = 228699366. Its totient is φ = 43524448.

The previous prime is 108857779. The next prime is 108857789. The reversal of 108857780 is 87758801.

It can be written as a sum of positive squares in 3 ways, for example, as 2808976 + 106048804 = 1676^2 + 10298^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108857789) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45494 + ... + 47826.

Almost surely, 2^108857780 is an apocalyptic number.

108857780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108857780 is an abundant number, since it is smaller than the sum of its proper divisors (119841586).

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

108857780 is an frugal number, since it uses more digits than its factorization.

108857780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4675 (or 2340 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 44.

The square root of 108857780 is about 10433.4931830140. The cubic root of 108857780 is about 477.4777709561.

The spelling of 108857780 in words is "one hundred eight million, eight hundred fifty-seven thousand, seven hundred eighty".