3905957 has 4 divisors (see below), whose sum is σ = 4261056. Its totient is φ = 3550860.

The previous prime is 3905953. The next prime is 3905987. The reversal of 3905957 is 7595093.

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 3905957 - 2² = 3905953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3905957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3905953) 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, 177533 + ... + 177554.

It is an arithmetic number, because the mean of its divisors is an integer number (1065264).

Almost surely, 2^3905957 is an apocalyptic number.

It is an amenable number.

3905957 is a deficient number, since it is larger than the sum of its proper divisors (355099).

3905957 is a wasteful number, since it uses less digits than its factorization.

3905957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355098.

The product of its (nonzero) digits is 42525, while the sum is 38.

The square root of 3905957 is about 1976.3494124269. The cubic root of 3905957 is about 157.4861934651.

The spelling of 3905957 in words is "three million, nine hundred five thousand, nine hundred fifty-seven".