3856427 has 4 divisors (see below), whose sum is σ = 3866880. Its totient is φ = 3845976.

The previous prime is 3856409. The next prime is 3856451. The reversal of 3856427 is 7246583.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7246583 = 331 ⋅21893.

It is a cyclic number.

It is not a de Polignac number, because 3856427 - 2¹⁴ = 3840043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3856477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4652 + ... + 5417.

It is an arithmetic number, because the mean of its divisors is an integer number (966720).

Almost surely, 2^3856427 is an apocalyptic number.

3856427 is a deficient number, since it is larger than the sum of its proper divisors (10453).

3856427 is a wasteful number, since it uses less digits than its factorization.

3856427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10452.

The product of its digits is 40320, while the sum is 35.

The square root of 3856427 is about 1963.7787553592. The cubic root of 3856427 is about 156.8176849717.

It can be divided in two parts, 38 and 56427, that added together give a palindrome (56465).

The spelling of 3856427 in words is "three million, eight hundred fifty-six thousand, four hundred twenty-seven".