3973201 has 4 divisors (see below), whose sum is σ = 3982500. Its totient is φ = 3963904.

The previous prime is 3973183. The next prime is 3973213. The reversal of 3973201 is 1023793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1023793 = 223 ⋅4591.

It can be written as a sum of positive squares in 2 ways, for example, as 819025 + 3154176 = 905^2 + 1776^2 .

It is a cyclic number.

It is not a de Polignac number, because 3973201 - 2¹¹ = 3971153 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3973241) 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, 3976 + ... + 4873.

It is an arithmetic number, because the mean of its divisors is an integer number (995625).

Almost surely, 2^3973201 is an apocalyptic number.

It is an amenable number.

3973201 is a deficient number, since it is larger than the sum of its proper divisors (9299).

3973201 is an equidigital number, since it uses as much as digits as its factorization.

3973201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9298.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 3973201 is about 1993.2889905882. The cubic root of 3973201 is about 158.3848041956.

Adding to 3973201 its reverse (1023793), we get a palindrome (4996994).

The spelling of 3973201 in words is "three million, nine hundred seventy-three thousand, two hundred one".