3871900 has 36 divisors (see below), whose sum is σ = 8680000. Its totient is φ = 1497600.

The previous prime is 3871883. The next prime is 3871909. The reversal of 3871900 is 91783.

3871900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3871900² = 29983219220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2476 + ... + 3724.

Almost surely, 2^3871900 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 3871900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4340000).

3871900 is an abundant number, since it is smaller than the sum of its proper divisors (4808100).

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

3871900 is a wasteful number, since it uses less digits than its factorization.

3871900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 3871900 is about 1967.7144101724. The cubic root of 3871900 is about 157.0271363699.

The spelling of 3871900 in words is "three million, eight hundred seventy-one thousand, nine hundred".