3855913 has 2 divisors, whose sum is σ = 3855914. Its totient is φ = 3855912.

The previous prime is 3855857. The next prime is 3855919. The reversal of 3855913 is 3195583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2408704 + 1447209 = 1552^2 + 1203^2 .

It is a cyclic number.

It is not a de Polignac number, because 3855913 - 2¹³ = 3847721 is a prime.

It is not a weakly prime, because it can be changed into another prime (3855919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1927956 + 1927957.

It is an arithmetic number, because the mean of its divisors is an integer number (1927957).

Almost surely, 2^3855913 is an apocalyptic number.

It is an amenable number.

3855913 is a deficient number, since it is larger than the sum of its proper divisors (1).

3855913 is an equidigital number, since it uses as much as digits as its factorization.

3855913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 34.

The square root of 3855913 is about 1963.6478808585. The cubic root of 3855913 is about 156.8107175662.

The spelling of 3855913 in words is "three million, eight hundred fifty-five thousand, nine hundred thirteen".