3878534 has 32 divisors (see below), whose sum is σ = 6746112. Its totient is φ = 1669800.

The previous prime is 3878521. The next prime is 3878543. The reversal of 3878534 is 4358783.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82499 + ... + 82545.

It is an arithmetic number, because the mean of its divisors is an integer number (210816).

Almost surely, 2^3878534 is an apocalyptic number.

3878534 is a deficient number, since it is larger than the sum of its proper divisors (2867578).

3878534 is a wasteful number, since it uses less digits than its factorization.

3878534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 91 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 3878534 is about 1969.3994008326. The cubic root of 3878534 is about 157.1167670971.

Subtracting 3878534 from its reverse (4358783), we obtain a square (480249 = 693²).

The spelling of 3878534 in words is "three million, eight hundred seventy-eight thousand, five hundred thirty-four".