3878712 has 32 divisors (see below), whose sum is σ = 10774800. Its totient is φ = 1292832.

The previous prime is 3878701. The next prime is 3878713. The reversal of 3878712 is 2178783.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3878713) 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, 8763 + ... + 9194.

Almost surely, 2^3878712 is an apocalyptic number.

It is an amenable number.

3878712 is an abundant number, since it is smaller than the sum of its proper divisors (6896088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3878712 is a wasteful number, since it uses less digits than its factorization.

3878712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17972 (or 17962 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 3878712 is about 1969.4445917568. Note that the first 3 decimals coincide. The cubic root of 3878712 is about 157.1191706132.

The spelling of 3878712 in words is "three million, eight hundred seventy-eight thousand, seven hundred twelve".