3978337 has 8 divisors (see below), whose sum is σ = 4355712. Its totient is φ = 3603600.

The previous prime is 3978329. The next prime is 3978349. The reversal of 3978337 is 7338793.

3978337 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3978337 - 2³ = 3978329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3978337.

It is not an unprimeable number, because it can be changed into a prime (3976337) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3912 + ... + 4822.

It is an arithmetic number, because the mean of its divisors is an integer number (544464).

Almost surely, 2^3978337 is an apocalyptic number.

It is an amenable number.

3978337 is a deficient number, since it is larger than the sum of its proper divisors (377375).

3978337 is a wasteful number, since it uses less digits than its factorization.

3978337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319.

The product of its digits is 95256, while the sum is 40.

The square root of 3978337 is about 1994.5768974898. The cubic root of 3978337 is about 158.4530207373.

The spelling of 3978337 in words is "three million, nine hundred seventy-eight thousand, three hundred thirty-seven".