3661928 has 16 divisors (see below), whose sum is σ = 6889380. Its totient is φ = 1824768.

The previous prime is 3661913. The next prime is 3661943. The reversal of 3661928 is 8291663.

3661928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3661913) and next prime (3661943).

It can be written as a sum of positive squares in 2 ways, for example, as 3452164 + 209764 = 1858^2 + 458^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

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 3 ways as a sum of consecutive naturals, for example, 2600 + ... + 3752.

Almost surely, 2^3661928 is an apocalyptic number.

It is an amenable number.

3661928 is a deficient number, since it is larger than the sum of its proper divisors (3227452).

3661928 is a wasteful number, since it uses less digits than its factorization.

3661928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556 (or 1552 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 3661928 is about 1913.6164715010. The cubic root of 3661928 is about 154.1357099112.

The spelling of 3661928 in words is "three million, six hundred sixty-one thousand, nine hundred twenty-eight".