3878456 has 16 divisors (see below), whose sum is σ = 7297440. Its totient is φ = 1932480.

The previous prime is 3878449. The next prime is 3878491. The reversal of 3878456 is 6548783.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2276 + ... + 3596.

It is an arithmetic number, because the mean of its divisors is an integer number (456090).

Almost surely, 2^3878456 is an apocalyptic number.

It is an amenable number.

3878456 is a deficient number, since it is larger than the sum of its proper divisors (3418984).

3878456 is a wasteful number, since it uses less digits than its factorization.

3878456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694 (or 1690 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 3878456 is about 1969.3795977414. The cubic root of 3878456 is about 157.1157138478.

It can be divided in two parts, 3878 and 456, that added together give a palindrome (4334).

The spelling of 3878456 in words is "three million, eight hundred seventy-eight thousand, four hundred fifty-six".