3855421827 has 8 divisors (see below), whose sum is σ = 5711736080. Its totient is φ = 2570281200.

The previous prime is 3855421783. The next prime is 3855421903. The reversal of 3855421827 is 7281245583.

3855421827 is a `hidden beast` number, since 3 + 85 + 542 + 1 + 8 + 27 = 666.

It is not a de Polignac number, because 3855421827 - 2⁶ = 3855421763 is a prime.

It is a super-3 number, since 3×3855421827³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3855421027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71396674 + ... + 71396727.

It is an arithmetic number, because the mean of its divisors is an integer number (713967010).

Almost surely, 2^3855421827 is an apocalyptic number.

3855421827 is a deficient number, since it is larger than the sum of its proper divisors (1856314253).

3855421827 is a wasteful number, since it uses less digits than its factorization.

3855421827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142793410 (or 142793404 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 3855421827 is about 62092.0431859027. The cubic root of 3855421827 is about 1568.0405900821.

The spelling of 3855421827 in words is "three billion, eight hundred fifty-five million, four hundred twenty-one thousand, eight hundred twenty-seven".