3937860 has 72 divisors (see below), whose sum is σ = 12108096. Its totient is φ = 1035840.

The previous prime is 3937849. The next prime is 3937861. The reversal of 3937860 is 687393.

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

It is not an unprimeable number, because it can be changed into a prime (3937861) 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, 23497 + ... + 23663.

It is an arithmetic number, because the mean of its divisors is an integer number (168168).

Almost surely, 2^3937860 is an apocalyptic number.

3937860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3937860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6054048).

3937860 is an abundant number, since it is smaller than the sum of its proper divisors (8170236).

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

3937860 is a wasteful number, since it uses less digits than its factorization.

3937860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 3937860 is about 1984.4041926987. The cubic root of 3937860 is about 157.9138022592.

The spelling of 3937860 in words is "three million, nine hundred thirty-seven thousand, eight hundred sixty".