3957965 has 8 divisors (see below), whose sum is σ = 5181408. Its totient is φ = 2878480.

The previous prime is 3957959. The next prime is 3957973. The reversal of 3957965 is 5697593.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3957965 - 2¹⁰ = 3956941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35927 + ... + 36036.

It is an arithmetic number, because the mean of its divisors is an integer number (647676).

Almost surely, 2^3957965 is an apocalyptic number.

It is an amenable number.

3957965 is a deficient number, since it is larger than the sum of its proper divisors (1223443).

3957965 is a wasteful number, since it uses less digits than its factorization.

3957965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71979.

The product of its digits is 255150, while the sum is 44.

The square root of 3957965 is about 1989.4634955183. The cubic root of 3957965 is about 158.1820925761.

The spelling of 3957965 in words is "three million, nine hundred fifty-seven thousand, nine hundred sixty-five".