3970478 has 4 divisors (see below), whose sum is σ = 5955720. Its totient is φ = 1985238.

The previous prime is 3970459. The next prime is 3970489. The reversal of 3970478 is 8740793.

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 (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 992618 + ... + 992621.

It is an arithmetic number, because the mean of its divisors is an integer number (1488930).

Almost surely, 2^3970478 is an apocalyptic number.

3970478 is a deficient number, since it is larger than the sum of its proper divisors (1985242).

3970478 is a wasteful number, since it uses less digits than its factorization.

3970478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985241.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 3970478 is about 1992.6058315683. The cubic root of 3970478 is about 158.3486133607.

The spelling of 3970478 in words is "three million, nine hundred seventy thousand, four hundred seventy-eight".