3957542 has 4 divisors (see below), whose sum is σ = 5936316. Its totient is φ = 1978770.

The previous prime is 3957521. The next prime is 3957571. The reversal of 3957542 is 2457593.

3957542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2457593 = 19 ⋅129347.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 989384 + ... + 989387.

It is an arithmetic number, because the mean of its divisors is an integer number (1484079).

Almost surely, 2^3957542 is an apocalyptic number.

3957542 is a deficient number, since it is larger than the sum of its proper divisors (1978774).

3957542 is a wasteful number, since it uses less digits than its factorization.

3957542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978773.

The product of its digits is 37800, while the sum is 35.

The square root of 3957542 is about 1989.3571826095. The cubic root of 3957542 is about 158.1764572383.

The spelling of 3957542 in words is "three million, nine hundred fifty-seven thousand, five hundred forty-two".