3887970 has 48 divisors (see below), whose sum is σ = 9875520. Its totient is φ = 979488.

The previous prime is 3887963. The next prime is 3887971. The reversal of 3887970 is 797883.

It is not an unprimeable number, because it can be changed into a prime (3887971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10651 + ... + 11009.

It is an arithmetic number, because the mean of its divisors is an integer number (205740).

Almost surely, 2^3887970 is an apocalyptic number.

3887970 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3887970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4937760).

3887970 is an abundant number, since it is smaller than the sum of its proper divisors (5987550).

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

3887970 is a wasteful number, since it uses less digits than its factorization.

3887970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 3887970 is about 1971.7935997462. The cubic root of 3887970 is about 157.2440792161.

The spelling of 3887970 in words is "three million, eight hundred eighty-seven thousand, nine hundred seventy".