3863641 has 12 divisors (see below), whose sum is σ = 4255020. Its totient is φ = 3503360.

The previous prime is 3863611. The next prime is 3863677. The reversal of 3863641 is 1463683.

It can be written as a sum of positive squares in 6 ways, for example, as 177241 + 3686400 = 421^2 + 1920^2 .

It is not a de Polignac number, because 3863641 - 2⁷ = 3863513 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3863611) 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, 8151 + ... + 8611.

It is an arithmetic number, because the mean of its divisors is an integer number (354585).

Almost surely, 2^3863641 is an apocalyptic number.

It is an amenable number.

3863641 is a deficient number, since it is larger than the sum of its proper divisors (391379).

3863641 is a wasteful number, since it uses less digits than its factorization.

3863641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 507 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 3863641 is about 1965.6146621350. The cubic root of 3863641 is about 156.9154073887.

The spelling of 3863641 in words is "three million, eight hundred sixty-three thousand, six hundred forty-one".