3956278 has 8 divisors (see below), whose sum is σ = 6006168. Its totient is φ = 1954224.

The previous prime is 3956269. The next prime is 3956279. The reversal of 3956278 is 8726593.

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

It is a super-2 number, since 2×3956278² = 31304271226568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3956278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3956279) 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, 11751 + ... + 12082.

It is an arithmetic number, because the mean of its divisors is an integer number (750771).

Almost surely, 2^3956278 is an apocalyptic number.

3956278 is a deficient number, since it is larger than the sum of its proper divisors (2049890).

3956278 is a wasteful number, since it uses less digits than its factorization.

3956278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23918.

The product of its digits is 90720, while the sum is 40.

The square root of 3956278 is about 1989.0394666773. The cubic root of 3956278 is about 158.1596154435.

The spelling of 3956278 in words is "three million, nine hundred fifty-six thousand, two hundred seventy-eight".