3855901 has 4 divisors (see below), whose sum is σ = 4406752. Its totient is φ = 3305052.

The previous prime is 3855857. The next prime is 3855913. The reversal of 3855901 is 1095583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3855901 - 2¹¹ = 3853853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3855961) 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 3 ways as a sum of consecutive naturals, for example, 275415 + ... + 275428.

It is an arithmetic number, because the mean of its divisors is an integer number (1101688).

Almost surely, 2^3855901 is an apocalyptic number.

It is an amenable number.

3855901 is a deficient number, since it is larger than the sum of its proper divisors (550851).

3855901 is an equidigital number, since it uses as much as digits as its factorization.

3855901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550850.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 3855901 is about 1963.6448253185. The cubic root of 3855901 is about 156.8105548957.

The spelling of 3855901 in words is "three million, eight hundred fifty-five thousand, nine hundred one".