3928201 has 8 divisors (see below), whose sum is σ = 4038984. Its totient is φ = 3818880.

The previous prime is 3928189. The next prime is 3928229. The reversal of 3928201 is 1028293.

It can be written as a sum of positive squares in 4 ways, for example, as 900601 + 3027600 = 949^2 + 1740^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3928201 - 2¹⁵ = 3895433 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3928261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6991 + ... + 7531.

It is an arithmetic number, because the mean of its divisors is an integer number (504873).

Almost surely, 2^3928201 is an apocalyptic number.

It is an amenable number.

3928201 is a deficient number, since it is larger than the sum of its proper divisors (110783).

3928201 is a wasteful number, since it uses less digits than its factorization.

3928201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 3928201 is about 1981.9689704937. The cubic root of 3928201 is about 157.7845833245.

The spelling of 3928201 in words is "three million, nine hundred twenty-eight thousand, two hundred one".