3946957 has 4 divisors (see below), whose sum is σ = 4510816. Its totient is φ = 3383100.

The previous prime is 3946939. The next prime is 3946981. The reversal of 3946957 is 7596493.

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 not a de Polignac number, because 3946957 - 2⁷ = 3946829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3946937) 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, 281919 + ... + 281932.

It is an arithmetic number, because the mean of its divisors is an integer number (1127704).

Almost surely, 2^3946957 is an apocalyptic number.

It is an amenable number.

3946957 is a deficient number, since it is larger than the sum of its proper divisors (563859).

3946957 is an equidigital number, since it uses as much as digits as its factorization.

3946957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563858.

The product of its digits is 204120, while the sum is 43.

The square root of 3946957 is about 1986.6949942052. The cubic root of 3946957 is about 158.0353096324.

The spelling of 3946957 in words is "three million, nine hundred forty-six thousand, nine hundred fifty-seven".