3963957 has 4 divisors (see below), whose sum is σ = 5285280. Its totient is φ = 2642636.

The previous prime is 3963931. The next prime is 3963959. The reversal of 3963957 is 7593693.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3963957 - 2⁶ = 3963893 is a prime.

It is an Ulam number.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3963959) 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 3 ways as a sum of consecutive naturals, for example, 660657 + ... + 660662.

It is an arithmetic number, because the mean of its divisors is an integer number (1321320).

Almost surely, 2^3963957 is an apocalyptic number.

It is an amenable number.

3963957 is a deficient number, since it is larger than the sum of its proper divisors (1321323).

3963957 is a wasteful number, since it uses less digits than its factorization.

3963957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321322.

The product of its digits is 153090, while the sum is 42.

The square root of 3963957 is about 1990.9688596259. The cubic root of 3963957 is about 158.2618767743.

The spelling of 3963957 in words is "three million, nine hundred sixty-three thousand, nine hundred fifty-seven".