3657868 has 6 divisors (see below), whose sum is σ = 6401276. Its totient is φ = 1828932.

The previous prime is 3657859. The next prime is 3657877. The reversal of 3657868 is 8687563.

3657868 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 (3657859) and next prime (3657877).

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 as a sum of consecutive naturals, namely, 457230 + ... + 457237.

Almost surely, 2^3657868 is an apocalyptic number.

It is an amenable number.

3657868 is a deficient number, since it is larger than the sum of its proper divisors (2743408).

3657868 is a wasteful number, since it uses less digits than its factorization.

3657868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914471 (or 914469 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 3657868 is about 1912.5553586759. Note that the first 3 decimals coincide. The cubic root of 3657868 is about 154.0787251391.

The spelling of 3657868 in words is "three million, six hundred fifty-seven thousand, eight hundred sixty-eight".