3878061 has 8 divisors (see below), whose sum is σ = 5640864. Its totient is φ = 2350320.

The previous prime is 3878051. The next prime is 3878093. The reversal of 3878061 is 1608783.

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

It is not a de Polignac number, because 3878061 - 2¹⁵ = 3845293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 117517 = 3878061 / (3 + 8 + 7 + 8 + 0 + 6 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3878051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58726 + ... + 58791.

It is an arithmetic number, because the mean of its divisors is an integer number (705108).

Almost surely, 2^3878061 is an apocalyptic number.

It is an amenable number.

3878061 is a deficient number, since it is larger than the sum of its proper divisors (1762803).

3878061 is a wasteful number, since it uses less digits than its factorization.

3878061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117531.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 3878061 is about 1969.2793097984. The cubic root of 3878061 is about 157.1103798684.

It can be divided in two parts, 387 and 8061, that added together give a palindrome (8448).

The spelling of 3878061 in words is "three million, eight hundred seventy-eight thousand, sixty-one".