3870688 has 48 divisors (see below), whose sum is σ = 8149680. Its totient is φ = 1806336.

The previous prime is 3870667. The next prime is 3870689. The reversal of 3870688 is 8860783.

It is a self number, because there is not a number n which added to its sum of digits gives 3870688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3870689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39856 + ... + 39952.

It is an arithmetic number, because the mean of its divisors is an integer number (169785).

Almost surely, 2^3870688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3870688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4074840).

3870688 is an abundant number, since it is smaller than the sum of its proper divisors (4278992).

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

3870688 is a wasteful number, since it uses less digits than its factorization.

3870688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 171 counting only the distinct ones).

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

The square root of 3870688 is about 1967.4064145468. The cubic root of 3870688 is about 157.0107502071.

The spelling of 3870688 in words is "three million, eight hundred seventy thousand, six hundred eighty-eight".