3867750 has 80 divisors (see below), whose sum is σ = 10872576. Its totient is φ = 1026000.

The previous prime is 3867739. The next prime is 3867757. The reversal of 3867750 is 577683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3867757) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20155 + ... + 20345.

Almost surely, 2^3867750 is an apocalyptic number.

3867750 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 3867750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5436288).

3867750 is an abundant number, since it is smaller than the sum of its proper divisors (7004826).

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

3867750 is a wasteful number, since it uses less digits than its factorization.

3867750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 3867750 is about 1966.6596045071. The cubic root of 3867750 is about 156.9710144334.

The spelling of 3867750 in words is "three million, eight hundred sixty-seven thousand, seven hundred fifty".