107785220 has 12 divisors (see below), whose sum is σ = 226349004. Its totient is φ = 43114080.

The previous prime is 107785213. The next prime is 107785229. The reversal of 107785220 is 22587701.

It can be written as a sum of positive squares in 2 ways, for example, as 70526404 + 37258816 = 8398^2 + 6104^2 .

It is not an unprimeable number, because it can be changed into a prime (107785229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2694611 + ... + 2694650.

It is an arithmetic number, because the mean of its divisors is an integer number (18862417).

Almost surely, 2^107785220 is an apocalyptic number.

107785220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

107785220 is an abundant number, since it is smaller than the sum of its proper divisors (118563784).

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

107785220 is a wasteful number, since it uses less digits than its factorization.

107785220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5389270 (or 5389268 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 107785220 is about 10381.9660951093. The cubic root of 107785220 is about 475.9044190545.

The spelling of 107785220 in words is "one hundred seven million, seven hundred eighty-five thousand, two hundred twenty".