3878743 has 8 divisors (see below), whose sum is σ = 4415616. Its totient is φ = 3372600.

The previous prime is 3878741. The next prime is 3878753. The reversal of 3878743 is 3478783.

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

It is not a de Polignac number, because 3878743 - 2¹ = 3878741 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3878696 and 3878705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3878741) 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, 7413 + ... + 7918.

It is an arithmetic number, because the mean of its divisors is an integer number (551952).

Almost surely, 2^3878743 is an apocalyptic number.

3878743 is a deficient number, since it is larger than the sum of its proper divisors (536873).

3878743 is a wasteful number, since it uses less digits than its factorization.

3878743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15365.

The product of its digits is 112896, while the sum is 40.

The square root of 3878743 is about 1969.4524619802. The cubic root of 3878743 is about 157.1195891956.

Adding to 3878743 its sum of digits (40), we get a palindrome (3878783).

The spelling of 3878743 in words is "three million, eight hundred seventy-eight thousand, seven hundred forty-three".