3840747 has 8 divisors (see below), whose sum is σ = 5343744. Its totient is φ = 2449128.

The previous prime is 3840737. The next prime is 3840761. The reversal of 3840747 is 7470483.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3840747 - 2¹⁹ = 3316459 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3840737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27763 + ... + 27900.

It is an arithmetic number, because the mean of its divisors is an integer number (667968).

Almost surely, 2^3840747 is an apocalyptic number.

3840747 is a deficient number, since it is larger than the sum of its proper divisors (1502997).

3840747 is a wasteful number, since it uses less digits than its factorization.

3840747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55689.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 3840747 is about 1959.7823858786. The cubic root of 3840747 is about 156.6048591763.

The spelling of 3840747 in words is "three million, eight hundred forty thousand, seven hundred forty-seven".