3861747 has 6 divisors (see below), whose sum is σ = 5578092. Its totient is φ = 2574492.

The previous prime is 3861743. The next prime is 3861751. The reversal of 3861747 is 7471683.

3861747 is a `hidden beast` number, since 38 + 617 + 4 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (3861743) and next prime (3861751).

It is not a de Polignac number, because 3861747 - 2² = 3861743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3861743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 214533 + ... + 214550.

It is an arithmetic number, because the mean of its divisors is an integer number (929682).

Almost surely, 2^3861747 is an apocalyptic number.

3861747 is a deficient number, since it is larger than the sum of its proper divisors (1716345).

3861747 is a wasteful number, since it uses less digits than its factorization.

3861747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429089 (or 429086 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 3861747 is about 1965.1328199386. The cubic root of 3861747 is about 156.8897626356.

The spelling of 3861747 in words is "three million, eight hundred sixty-one thousand, seven hundred forty-seven".