3847143 has 4 divisors (see below), whose sum is σ = 5129528. Its totient is φ = 2564760.

The previous prime is 3847127. The next prime is 3847147. The reversal of 3847143 is 3417483.

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

It is not a de Polignac number, because 3847143 - 2⁴ = 3847127 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3847143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3847147) 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, 641188 + ... + 641193.

It is an arithmetic number, because the mean of its divisors is an integer number (1282382).

Almost surely, 2^3847143 is an apocalyptic number.

3847143 is a deficient number, since it is larger than the sum of its proper divisors (1282385).

3847143 is a wasteful number, since it uses less digits than its factorization.

3847143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282384.

The product of its digits is 8064, while the sum is 30.

The square root of 3847143 is about 1961.4135209078. The cubic root of 3847143 is about 156.6917423773.

The spelling of 3847143 in words is "three million, eight hundred forty-seven thousand, one hundred forty-three".