3866355 has 24 divisors (see below), whose sum is σ = 6757920. Its totient is φ = 2044800.

The previous prime is 3866333. The next prime is 3866393. The reversal of 3866355 is 5536683.

It is not a de Polignac number, because 3866355 - 2⁸ = 3866099 is a prime.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 6511 + ... + 7079.

It is an arithmetic number, because the mean of its divisors is an integer number (281580).

Almost surely, 2^3866355 is an apocalyptic number.

3866355 is a deficient number, since it is larger than the sum of its proper divisors (2891565).

3866355 is a wasteful number, since it uses less digits than its factorization.

3866355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731 (or 728 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 3866355 is about 1966.3049102314. The cubic root of 3866355 is about 156.9521403338.

The spelling of 3866355 in words is "three million, eight hundred sixty-six thousand, three hundred fifty-five".