3878141 has 8 divisors (see below), whose sum is σ = 4040280. Its totient is φ = 3717952.

The previous prime is 3878137. The next prime is 3878143. The reversal of 3878141 is 1418783.

It can be written as a sum of positive squares in 4 ways, for example, as 532900 + 3345241 = 730^2 + 1829^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3878141 - 2² = 3878137 is a prime.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3878098 and 3878107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3878143) 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, 4631 + ... + 5403.

It is an arithmetic number, because the mean of its divisors is an integer number (505035).

Almost surely, 2^3878141 is an apocalyptic number.

It is an amenable number.

3878141 is a deficient number, since it is larger than the sum of its proper divisors (162139).

3878141 is a wasteful number, since it uses less digits than its factorization.

3878141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975.

The product of its digits is 5376, while the sum is 32.

The square root of 3878141 is about 1969.2996216930. The cubic root of 3878141 is about 157.1114601972. Note that the first 3 decimals are identical.

The spelling of 3878141 in words is "three million, eight hundred seventy-eight thousand, one hundred forty-one".