3978201 has 16 divisors (see below), whose sum is σ = 5667840. Its totient is φ = 2474640.

The previous prime is 3978197. The next prime is 3978217. The reversal of 3978201 is 1028793.

It is a happy number.

It is not a de Polignac number, because 3978201 - 2² = 3978197 is a prime.

It is a zygodrome in base 6.

It is a congruent number.

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, 3556 + ... + 4538.

It is an arithmetic number, because the mean of its divisors is an integer number (354240).

Almost surely, 2^3978201 is an apocalyptic number.

It is an amenable number.

3978201 is a deficient number, since it is larger than the sum of its proper divisors (1689639).

3978201 is a wasteful number, since it uses less digits than its factorization.

3978201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 3978201 is about 1994.5428047550. The cubic root of 3978201 is about 158.4512151372.

The spelling of 3978201 in words is "three million, nine hundred seventy-eight thousand, two hundred one".