3978323 has 8 divisors (see below), whose sum is σ = 4348800. Its totient is φ = 3623040.

The previous prime is 3978301. The next prime is 3978329. The reversal of 3978323 is 3238793.

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

It is not a de Polignac number, because 3978323 - 2¹² = 3974227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3978329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3248 + ... + 4301.

It is an arithmetic number, because the mean of its divisors is an integer number (543600).

Almost surely, 2^3978323 is an apocalyptic number.

3978323 is a deficient number, since it is larger than the sum of its proper divisors (370477).

3978323 is a wasteful number, since it uses less digits than its factorization.

3978323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7597.

The product of its digits is 27216, while the sum is 35.

The square root of 3978323 is about 1994.5733879705. The cubic root of 3978323 is about 158.4528348686.

The spelling of 3978323 in words is "three million, nine hundred seventy-eight thousand, three hundred twenty-three".