107781328 has 10 divisors (see below), whose sum is σ = 208826354. Its totient is φ = 53890656.

The previous prime is 107781301. The next prime is 107781329. The reversal of 107781328 is 823187701.

It can be written as a sum of positive squares in only one way, i.e., 99440784 + 8340544 = 9972^2 + 2888^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107781329) 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 as a sum of consecutive naturals, namely, 3368151 + ... + 3368182.

Almost surely, 2^107781328 is an apocalyptic number.

It is an amenable number.

107781328 is a deficient number, since it is larger than the sum of its proper divisors (101045026).

107781328 is an equidigital number, since it uses as much as digits as its factorization.

107781328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6736341 (or 6736335 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 107781328 is about 10381.7786530055. The cubic root of 107781328 is about 475.8986908656.

The spelling of 107781328 in words is "one hundred seven million, seven hundred eighty-one thousand, three hundred twenty-eight".