3978370 has 32 divisors (see below), whose sum is σ = 7957440. Its totient is φ = 1419840.

The previous prime is 3978349. The next prime is 3978421. The reversal of 3978370 is 738793.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6184 + ... + 6796.

It is an arithmetic number, because the mean of its divisors is an integer number (248670).

Almost surely, 2^3978370 is an apocalyptic number.

3978370 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

3978370 is a wasteful number, since it uses less digits than its factorization.

3978370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 3978370 is about 1994.5851699038. The cubic root of 3978370 is about 158.4534588546.

The spelling of 3978370 in words is "three million, nine hundred seventy-eight thousand, three hundred seventy".