120705777 has 12 divisors (see below), whose sum is σ = 174476484. Its totient is φ = 80413440.

The previous prime is 120705769. The next prime is 120705779. The reversal of 120705777 is 777507021.

It is a happy number.

120705777 is a `hidden beast` number, since 12 + 0 + 70 + 577 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 106688241 + 14017536 = 10329^2 + 3744^2 .

It is not a de Polignac number, because 120705777 - 2³ = 120705769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120705779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11593 + ... + 19385.

It is an arithmetic number, because the mean of its divisors is an integer number (14539707).

Almost surely, 2^120705777 is an apocalyptic number.

It is an amenable number.

120705777 is a deficient number, since it is larger than the sum of its proper divisors (53770707).

120705777 is a wasteful number, since it uses less digits than its factorization.

120705777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9520 (or 9517 counting only the distinct ones).

The product of its (nonzero) digits is 24010, while the sum is 36.

The square root of 120705777 is about 10986.6180874735. The cubic root of 120705777 is about 494.2075228895.

The spelling of 120705777 in words is "one hundred twenty million, seven hundred five thousand, seven hundred seventy-seven".