75786066 has 12 divisors (see below), whose sum is σ = 164203182. Its totient is φ = 25262016.

The previous prime is 75786059. The next prime is 75786083. The reversal of 75786066 is 66068757.

It can be written as a sum of positive squares in only one way, i.e., 59213025 + 16573041 = 7695^2 + 4071^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2105151 + ... + 2105186.

Almost surely, 2^75786066 is an apocalyptic number.

75786066 is an abundant number, since it is smaller than the sum of its proper divisors (88417116).

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

75786066 is a wasteful number, since it uses less digits than its factorization.

75786066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4210345 (or 4210342 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 75786066 is about 8705.5192837648. The cubic root of 75786066 is about 423.1845346114.

The spelling of 75786066 in words is "seventy-five million, seven hundred eighty-six thousand, sixty-six".