3850891 has 8 divisors (see below), whose sum is σ = 4448304. Its totient is φ = 3294720.

The previous prime is 3850883. The next prime is 3850909. The reversal of 3850891 is 1980583.

3850891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3850891 - 2³ = 3850883 is a prime.

It is a super-2 number, since 2×3850891² = 29658722987762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3850811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10110 + ... + 10483.

It is an arithmetic number, because the mean of its divisors is an integer number (556038).

Almost surely, 2^3850891 is an apocalyptic number.

3850891 is a deficient number, since it is larger than the sum of its proper divisors (597413).

3850891 is a wasteful number, since it uses less digits than its factorization.

3850891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20621.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 3850891 is about 1962.3687217238. The cubic root of 3850891 is about 156.7426104317.

The spelling of 3850891 in words is "three million, eight hundred fifty thousand, eight hundred ninety-one".