3878836 has 24 divisors (see below), whose sum is σ = 7395080. Its totient is φ = 1769472.

The previous prime is 3878783. The next prime is 3878843. The reversal of 3878836 is 6388783.

3878836 = 150² + 151² + ... + 246².

It can be written as a sum of positive squares in 4 ways, for example, as 52900 + 3825936 = 230^2 + 1956^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3878792 and 3878801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4660 + ... + 5428.

Almost surely, 2^3878836 is an apocalyptic number.

It is an amenable number.

3878836 is a deficient number, since it is larger than the sum of its proper divisors (3516244).

3878836 is a wasteful number, since it uses less digits than its factorization.

3878836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883 (or 881 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 3878836 is about 1969.4760724619. The cubic root of 3878836 is about 157.1208449293.

The spelling of 3878836 in words is "three million, eight hundred seventy-eight thousand, eight hundred thirty-six".