3861427 has 4 divisors (see below), whose sum is σ = 4064680. Its totient is φ = 3658176.

The previous prime is 3861419. The next prime is 3861433. The reversal of 3861427 is 7241683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7241683 = 137 ⋅52859.

It is a cyclic number.

It is not a de Polignac number, because 3861427 - 2³ = 3861419 is a prime.

It is a d-powerful number, because it can be written as 3⁷ + 8⁷ + 6⁸ + 1 + 4⁸ + 2⁷ + 7⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3862427) 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, 101598 + ... + 101635.

It is an arithmetic number, because the mean of its divisors is an integer number (1016170).

Almost surely, 2^3861427 is an apocalyptic number.

3861427 is a deficient number, since it is larger than the sum of its proper divisors (203253).

3861427 is a wasteful number, since it uses less digits than its factorization.

3861427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203252.

The product of its digits is 8064, while the sum is 31.

The square root of 3861427 is about 1965.0513988189. The cubic root of 3861427 is about 156.8854290088.

The spelling of 3861427 in words is "three million, eight hundred sixty-one thousand, four hundred twenty-seven".