775107216 has 60 divisors (see below), whose sum is σ = 2336092668. Its totient is φ = 238493952.

The previous prime is 775107187. The next prime is 775107227. The reversal of 775107216 is 612701577.

775107216 is a `hidden beast` number, since 77 + 510 + 72 + 1 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 118722816 + 656384400 = 10896^2 + 25620^2 .

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

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 205155 + ... + 208898.

Almost surely, 2^775107216 is an apocalyptic number.

It is an amenable number.

775107216 is an abundant number, since it is smaller than the sum of its proper divisors (1560985452).

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

775107216 is a wasteful number, since it uses less digits than its factorization.

775107216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414080 (or 414071 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 36.

The square root of 775107216 is about 27840.7474037606. The cubic root of 775107216 is about 918.5876312261.

The spelling of 775107216 in words is "seven hundred seventy-five million, one hundred seven thousand, two hundred sixteen".