3842747 has 4 divisors (see below), whose sum is σ = 3880896. Its totient is φ = 3804600.

The previous prime is 3842737. The next prime is 3842749. The reversal of 3842747 is 7472483.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3842747 - 2¹⁶ = 3777211 is a prime.

It is a d-powerful number, because it can be written as 3¹³ + 8³ + 4⁷ + 2²¹ + 7³ + 4⁷ + 7⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3842749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18923 + ... + 19124.

It is an arithmetic number, because the mean of its divisors is an integer number (970224).

Almost surely, 2^3842747 is an apocalyptic number.

3842747 is a deficient number, since it is larger than the sum of its proper divisors (38149).

3842747 is a wasteful number, since it uses less digits than its factorization.

3842747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38148.

The product of its digits is 37632, while the sum is 35.

The square root of 3842747 is about 1960.2925802033. The cubic root of 3842747 is about 156.6320375150.

The spelling of 3842747 in words is "three million, eight hundred forty-two thousand, seven hundred forty-seven".