675439866 has 24 divisors (see below), whose sum is σ = 1474140564. Its totient is φ = 223502400.

The previous prime is 675439861. The next prime is 675439871. The reversal of 675439866 is 668934576.

675439866 is a `hidden beast` number, since 6 + 7 + 543 + 98 + 6 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (675439861) and next prime (675439871).

It can be written as a sum of positive squares in 2 ways, for example, as 618964641 + 56475225 = 24879^2 + 7515^2 .

It is not an unprimeable number, because it can be changed into a prime (675439861) 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 in 11 ways as a sum of consecutive naturals, for example, 134485 + ... + 139416.

Almost surely, 2^675439866 is an apocalyptic number.

675439866 is an abundant number, since it is smaller than the sum of its proper divisors (798700698).

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

675439866 is a wasteful number, since it uses less digits than its factorization.

675439866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274046 (or 274043 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The square root of 675439866 is about 25989.2259600012. The cubic root of 675439866 is about 877.3958246797.

The spelling of 675439866 in words is "six hundred seventy-five million, four hundred thirty-nine thousand, eight hundred sixty-six".