3870478 has 4 divisors (see below), whose sum is σ = 5805720. Its totient is φ = 1935238.

The previous prime is 3870469. The next prime is 3870479. The reversal of 3870478 is 8740783.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3870479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 967618 + ... + 967621.

It is an arithmetic number, because the mean of its divisors is an integer number (1451430).

Almost surely, 2^3870478 is an apocalyptic number.

3870478 is a deficient number, since it is larger than the sum of its proper divisors (1935242).

3870478 is a wasteful number, since it uses less digits than its factorization.

3870478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935241.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 3870478 is about 1967.3530440671. The cubic root of 3870478 is about 157.0079106728.

The spelling of 3870478 in words is "three million, eight hundred seventy thousand, four hundred seventy-eight".