3956845 has 8 divisors (see below), whose sum is σ = 4998240. Its totient is φ = 2998800.

The previous prime is 3956833. The next prime is 3956857. The reversal of 3956845 is 5486593.

3956845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3956833) and next prime (3956857).

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

It is not a de Polignac number, because 3956845 - 2¹³ = 3948653 is a prime.

3956845 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3956798 and 3956807.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20731 + ... + 20920.

It is an arithmetic number, because the mean of its divisors is an integer number (624780).

Almost surely, 2^3956845 is an apocalyptic number.

It is an amenable number.

3956845 is a deficient number, since it is larger than the sum of its proper divisors (1041395).

3956845 is a wasteful number, since it uses less digits than its factorization.

3956845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41675.

The product of its digits is 129600, while the sum is 40.

The square root of 3956845 is about 1989.1819926794. The cubic root of 3956845 is about 158.1671707112.

The spelling of 3956845 in words is "three million, nine hundred fifty-six thousand, eight hundred forty-five".