3878806 has 4 divisors (see below), whose sum is σ = 5818212. Its totient is φ = 1939402.

The previous prime is 3878783. The next prime is 3878843. The reversal of 3878806 is 6088783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6088783 = 409 ⋅14887.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 969700 + ... + 969703.

It is an arithmetic number, because the mean of its divisors is an integer number (1454553).

Almost surely, 2^3878806 is an apocalyptic number.

3878806 is a deficient number, since it is larger than the sum of its proper divisors (1939406).

3878806 is a wasteful number, since it uses less digits than its factorization.

3878806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939405.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 3878806 is about 1969.4684562084. The cubic root of 3878806 is about 157.1204398561.

The spelling of 3878806 in words is "three million, eight hundred seventy-eight thousand, eight hundred six".