3978106 has 32 divisors (see below), whose sum is σ = 7096320. Its totient is φ = 1652400.

The previous prime is 3978101. The next prime is 3978109. The reversal of 3978106 is 6018793.

3978106 = 114² + 115² + ... + 237².

It is not an unprimeable number, because it can be changed into a prime (3978101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12805 + ... + 13111.

It is an arithmetic number, because the mean of its divisors is an integer number (221760).

Almost surely, 2^3978106 is an apocalyptic number.

3978106 is a deficient number, since it is larger than the sum of its proper divisors (3118214).

3978106 is a wasteful number, since it uses less digits than its factorization.

3978106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 3978106 is about 1994.5189896313. The cubic root of 3978106 is about 158.4499538481.

The spelling of 3978106 in words is "three million, nine hundred seventy-eight thousand, one hundred six".