3826778 has 4 divisors (see below), whose sum is σ = 5740170. Its totient is φ = 1913388.

The previous prime is 3826777. The next prime is 3826843. The reversal of 3826778 is 8776283.

3826778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8776283 = 2351 ⋅3733.

It can be written as a sum of positive squares in only one way, i.e., 3775249 + 51529 = 1943^2 + 227^2 .

It is a super-2 number, since 2×3826778² = 29288459722568, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3826777) by changing a digit.

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 as a sum of consecutive naturals, namely, 956693 + ... + 956696.

Almost surely, 2^3826778 is an apocalyptic number.

3826778 is a deficient number, since it is larger than the sum of its proper divisors (1913392).

3826778 is a wasteful number, since it uses less digits than its factorization.

3826778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913391.

The product of its digits is 112896, while the sum is 41.

The square root of 3826778 is about 1956.2152233331. The cubic root of 3826778 is about 156.4147684809.

The spelling of 3826778 in words is "three million, eight hundred twenty-six thousand, seven hundred seventy-eight".