75648866 has 16 divisors (see below), whose sum is σ = 117365760. Its totient is φ = 36531840.

The previous prime is 75648857. The next prime is 75648871. The reversal of 75648866 is 66884657.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 43730 + ... + 45426.

It is an arithmetic number, because the mean of its divisors is an integer number (7335360).

Almost surely, 2^75648866 is an apocalyptic number.

75648866 is a deficient number, since it is larger than the sum of its proper divisors (41716894).

75648866 is a wasteful number, since it uses less digits than its factorization.

75648866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449.

The product of its digits is 1935360, while the sum is 50.

The square root of 75648866 is about 8697.6356557400. The cubic root of 75648866 is about 422.9290083494.

The spelling of 75648866 in words is "seventy-five million, six hundred forty-eight thousand, eight hundred sixty-six".