3878149 has 8 divisors (see below), whose sum is σ = 4334400. Its totient is φ = 3439200.

The previous prime is 3878143. The next prime is 3878177. The reversal of 3878149 is 9418783.

3878149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3878149 - 2¹¹ = 3876101 is a prime.

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

It is a Duffinian number.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3849 + ... + 4750.

It is an arithmetic number, because the mean of its divisors is an integer number (541800).

Almost surely, 2^3878149 is an apocalyptic number.

It is an amenable number.

3878149 is a deficient number, since it is larger than the sum of its proper divisors (456251).

3878149 is a wasteful number, since it uses less digits than its factorization.

3878149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8651.

The product of its digits is 48384, while the sum is 40.

The square root of 3878149 is about 1969.3016528709. The cubic root of 3878149 is about 157.1115682293. Note that the first 3 decimals are identical.

It can be divided in two parts, 38 and 78149, that added together give a palindrome (78187).

The spelling of 3878149 in words is "three million, eight hundred seventy-eight thousand, one hundred forty-nine".