3957746 has 24 divisors (see below), whose sum is σ = 6657924. Its totient is φ = 1753920.

The previous prime is 3957743. The next prime is 3957749. The reversal of 3957746 is 6477593.

It is an interprime number because it is at equal distance from previous prime (3957743) and next prime (3957749).

It can be written as a sum of positive squares in 6 ways, for example, as 290521 + 3667225 = 539^2 + 1915^2 .

It is not an unprimeable number, because it can be changed into a prime (3957743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21776 + ... + 21956.

Almost surely, 2^3957746 is an apocalyptic number.

3957746 is a deficient number, since it is larger than the sum of its proper divisors (2700178).

3957746 is a wasteful number, since it uses less digits than its factorization.

3957746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 225 counting only the distinct ones).

The product of its digits is 158760, while the sum is 41.

The square root of 3957746 is about 1989.4084547925. The cubic root of 3957746 is about 158.1791750400.

The spelling of 3957746 in words is "three million, nine hundred fifty-seven thousand, seven hundred forty-six".