3986890228 has 12 divisors (see below), whose sum is σ = 6983311972. Its totient is φ = 1991658240.

The previous prime is 3986890189. The next prime is 3986890283. The reversal of 3986890228 is 8220986893.

It can be written as a sum of positive squares in 2 ways, for example, as 254657764 + 3732232464 = 15958^2 + 61092^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441693 + ... + 450628.

Almost surely, 2^3986890228 is an apocalyptic number.

It is an amenable number.

3986890228 is a deficient number, since it is larger than the sum of its proper divisors (2996421744).

3986890228 is a wasteful number, since it uses less digits than its factorization.

3986890228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893442 (or 893440 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 55.

The square root of 3986890228 is about 63141.8262960456. The cubic root of 3986890228 is about 1585.6649484358.

The spelling of 3986890228 in words is "three billion, nine hundred eighty-six million, eight hundred ninety thousand, two hundred twenty-eight".