3856221541 has 8 divisors (see below), whose sum is σ = 3955008384. Its totient is φ = 3758398800.

The previous prime is 3856221497. The next prime is 3856221547. The reversal of 3856221541 is 1451226583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3856221541 - 2¹⁵ = 3856188773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3856221541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3856221547) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 232921 + ... + 248926.

It is an arithmetic number, because the mean of its divisors is an integer number (494376048).

Almost surely, 2^3856221541 is an apocalyptic number.

It is an amenable number.

3856221541 is a deficient number, since it is larger than the sum of its proper divisors (98786843).

3856221541 is a wasteful number, since it uses less digits than its factorization.

3856221541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482051.

The product of its digits is 57600, while the sum is 37.

The square root of 3856221541 is about 62098.4825982085. The cubic root of 3856221541 is about 1568.1489999505.

The spelling of 3856221541 in words is "three billion, eight hundred fifty-six million, two hundred twenty-one thousand, five hundred forty-one".