3957385 has 8 divisors (see below), whose sum is σ = 4802760. Its totient is φ = 3129984.

The previous prime is 3957383. The next prime is 3957389. The reversal of 3957385 is 5837593.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9216 + 3948169 = 96^2 + 1987^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3957385 - 2¹ = 3957383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3957383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4002 + ... + 4891.

It is an arithmetic number, because the mean of its divisors is an integer number (600345).

Almost surely, 2^3957385 is an apocalyptic number.

It is an amenable number.

3957385 is a deficient number, since it is larger than the sum of its proper divisors (845375).

3957385 is an equidigital number, since it uses as much as digits as its factorization.

3957385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8987.

The product of its digits is 113400, while the sum is 40.

The square root of 3957385 is about 1989.3177222354. The cubic root of 3957385 is about 158.1743655332.

The spelling of 3957385 in words is "three million, nine hundred fifty-seven thousand, three hundred eighty-five".