3870278 has 4 divisors (see below), whose sum is σ = 5805420. Its totient is φ = 1935138.

The previous prime is 3870259. The next prime is 3870283. The reversal of 3870278 is 8720783.

It is a happy number.

3870278 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.

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 as a sum of consecutive naturals, namely, 967568 + ... + 967571.

It is an arithmetic number, because the mean of its divisors is an integer number (1451355).

Almost surely, 2^3870278 is an apocalyptic number.

3870278 is a deficient number, since it is larger than the sum of its proper divisors (1935142).

3870278 is a wasteful number, since it uses less digits than its factorization.

3870278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935141.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 3870278 is about 1967.3022136926. The cubic root of 3870278 is about 157.0052062590.

The spelling of 3870278 in words is "three million, eight hundred seventy thousand, two hundred seventy-eight".