3957957 has 16 divisors (see below), whose sum is σ = 6209280. Its totient is φ = 2483136.

The previous prime is 3957953. The next prime is 3957959. The reversal of 3957957 is 7597593.

It is a happy number.

3957957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3957957 - 2² = 3957953 is a prime.

It is a super-2 number, since 2×3957957² = 31330847227698, which contains 22 as substring.

3957957 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3957953) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 3853 + ... + 4770.

It is an arithmetic number, because the mean of its divisors is an integer number (388080).

Almost surely, 2^3957957 is an apocalyptic number.

It is an amenable number.

3957957 is a deficient number, since it is larger than the sum of its proper divisors (2251323).

3957957 is a wasteful number, since it uses less digits than its factorization.

3957957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8649 (or 8643 counting only the distinct ones).

The product of its digits is 297675, while the sum is 45.

The square root of 3957957 is about 1989.4614849250. The cubic root of 3957957 is about 158.1819860013.

The spelling of 3957957 in words is "three million, nine hundred fifty-seven thousand, nine hundred fifty-seven".