3957760 has 44 divisors (see below), whose sum is σ = 9506268. Its totient is φ = 1581056.

The previous prime is 3957749. The next prime is 3957761. The reversal of 3957760 is 677593.

It can be written as a sum of positive squares in 2 ways, for example, as 746496 + 3211264 = 864^2 + 1792^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3957761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4734 + ... + 5506.

Almost surely, 2^3957760 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 3957760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4753134).

3957760 is an abundant number, since it is smaller than the sum of its proper divisors (5548508).

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

3957760 is an equidigital number, since it uses as much as digits as its factorization.

3957760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 37.

The square root of 3957760 is about 1989.4119734233. The cubic root of 3957760 is about 158.1793615524.

The spelling of 3957760 in words is "three million, nine hundred fifty-seven thousand, seven hundred sixty".