3851913 has 16 divisors (see below), whose sum is σ = 5566400. Its totient is φ = 2355264.

The previous prime is 3851899. The next prime is 3851917. The reversal of 3851913 is 3191583.

It is a happy number.

3851913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3851913 - 2¹² = 3847817 is a prime.

It is an Ulam number.

It is a Duffinian number.

Its product of digits (3240) is a multiple of the sum of its prime divisors (648).

It is not an unprimeable number, because it can be changed into a prime (3851917) 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 15 ways as a sum of consecutive naturals, for example, 10863 + ... + 11211.

It is an arithmetic number, because the mean of its divisors is an integer number (347900).

Almost surely, 2^3851913 is an apocalyptic number.

It is an amenable number.

3851913 is a deficient number, since it is larger than the sum of its proper divisors (1714487).

3851913 is a wasteful number, since it uses less digits than its factorization.

3851913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648.

The product of its digits is 3240, while the sum is 30.

The square root of 3851913 is about 1962.6291040337. The cubic root of 3851913 is about 156.7564753423.

The spelling of 3851913 in words is "three million, eight hundred fifty-one thousand, nine hundred thirteen".