3855441047 has 4 divisors (see below), whose sum is σ = 3988387320. Its totient is φ = 3722494776.

The previous prime is 3855440977. The next prime is 3855441059. The reversal of 3855441047 is 7401445583.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3855441047 - 2⁸ = 3855440791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3855440995 and 3855441013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3855441097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66473093 + ... + 66473150.

It is an arithmetic number, because the mean of its divisors is an integer number (997096830).

Almost surely, 2^3855441047 is an apocalyptic number.

3855441047 is a deficient number, since it is larger than the sum of its proper divisors (132946273).

3855441047 is a wasteful number, since it uses less digits than its factorization.

3855441047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132946272.

The product of its (nonzero) digits is 268800, while the sum is 41.

The square root of 3855441047 is about 62092.1979559429. The cubic root of 3855441047 is about 1568.0431957364.

The spelling of 3855441047 in words is "three billion, eight hundred fifty-five million, four hundred forty-one thousand, forty-seven".