3861603 has 12 divisors (see below), whose sum is σ = 5597280. Its totient is φ = 2565456.

The previous prime is 3861593. The next prime is 3861607. The reversal of 3861603 is 3061683.

It is not a de Polignac number, because 3861603 - 2⁴ = 3861587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3861607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2950 + ... + 4052.

It is an arithmetic number, because the mean of its divisors is an integer number (466440).

Almost surely, 2^3861603 is an apocalyptic number.

3861603 is a deficient number, since it is larger than the sum of its proper divisors (1735677).

3861603 is a wasteful number, since it uses less digits than its factorization.

3861603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498 (or 1495 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 3861603 is about 1965.0961808522. The cubic root of 3861603 is about 156.8878125332.

The spelling of 3861603 in words is "three million, eight hundred sixty-one thousand, six hundred three".