3967478 has 8 divisors (see below), whose sum is σ = 5964168. Its totient is φ = 1979424.

The previous prime is 3967451. The next prime is 3967487. The reversal of 3967478 is 8747693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon 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 in 3 ways as a sum of consecutive naturals, for example, 851 + ... + 2942.

It is an arithmetic number, because the mean of its divisors is an integer number (745521).

Almost surely, 2^3967478 is an apocalyptic number.

3967478 is a deficient number, since it is larger than the sum of its proper divisors (1996690).

3967478 is a wasteful number, since it uses less digits than its factorization.

3967478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4318.

The product of its digits is 254016, while the sum is 44.

The square root of 3967478 is about 1991.8529062157. The cubic root of 3967478 is about 158.3087218132.

The spelling of 3967478 in words is "three million, nine hundred sixty-seven thousand, four hundred seventy-eight".