3812278 has 4 divisors (see below), whose sum is σ = 5718420. Its totient is φ = 1906138.

The previous prime is 3812269. The next prime is 3812309. The reversal of 3812278 is 8722183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8722183 = 2131 ⋅4093.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 953068 + ... + 953071.

It is an arithmetic number, because the mean of its divisors is an integer number (1429605).

Almost surely, 2^3812278 is an apocalyptic number.

3812278 is a deficient number, since it is larger than the sum of its proper divisors (1906142).

3812278 is a wasteful number, since it uses less digits than its factorization.

3812278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906141.

The product of its digits is 5376, while the sum is 31.

The square root of 3812278 is about 1952.5055697744. The cubic root of 3812278 is about 156.2169619748.

The spelling of 3812278 in words is "three million, eight hundred twelve thousand, two hundred seventy-eight".