3679806866 has 4 divisors (see below), whose sum is σ = 5519710302. Its totient is φ = 1839903432.

The previous prime is 3679806863. The next prime is 3679806913. The reversal of 3679806866 is 6686089763.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2860645225 + 819161641 = 53485^2 + 28621^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3679806863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 919951715 + ... + 919951718.

Almost surely, 2^3679806866 is an apocalyptic number.

3679806866 is a deficient number, since it is larger than the sum of its proper divisors (1839903436).

3679806866 is a wasteful number, since it uses less digits than its factorization.

3679806866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839903435.

The product of its (nonzero) digits is 15676416, while the sum is 59.

The square root of 3679806866 is about 60661.4116716715. The cubic root of 3679806866 is about 1543.8615165804.

The spelling of 3679806866 in words is "three billion, six hundred seventy-nine million, eight hundred six thousand, eight hundred sixty-six".