3978308 has 12 divisors (see below), whose sum is σ = 7003500. Its totient is φ = 1977312.

The previous prime is 3978301. The next prime is 3978329. The reversal of 3978308 is 8038793.

It can be written as a sum of positive squares in 2 ways, for example, as 1643524 + 2334784 = 1282^2 + 1528^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3978301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2183 + ... + 3566.

It is an arithmetic number, because the mean of its divisors is an integer number (583625).

Almost surely, 2^3978308 is an apocalyptic number.

It is an amenable number.

3978308 is a deficient number, since it is larger than the sum of its proper divisors (3025192).

3978308 is a wasteful number, since it uses less digits than its factorization.

3978308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5926 (or 5924 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 3978308 is about 1994.5696277643. The cubic root of 3978308 is about 158.4526357231.

The spelling of 3978308 in words is "three million, nine hundred seventy-eight thousand, three hundred eight".