3856123 has 2 divisors, whose sum is σ = 3856124. Its totient is φ = 3856122.

The previous prime is 3856109. The next prime is 3856129. The reversal of 3856123 is 3216583.

It is a strong prime.

It is an emirp because it is prime and its reverse (3216583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3856123 - 2¹³ = 3847931 is a prime.

It is a super-2 number, since 2×3856123² = 29739369182258, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 3856091 and 3856100.

It is not a weakly prime, because it can be changed into another prime (3856129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1928061 + 1928062.

It is an arithmetic number, because the mean of its divisors is an integer number (1928062).

Almost surely, 2^3856123 is an apocalyptic number.

3856123 is a deficient number, since it is larger than the sum of its proper divisors (1).

3856123 is an equidigital number, since it uses as much as digits as its factorization.

3856123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 3856123 is about 1963.7013520391. The cubic root of 3856123 is about 156.8135642464.

The spelling of 3856123 in words is "three million, eight hundred fifty-six thousand, one hundred twenty-three".