3931201 has 4 divisors (see below), whose sum is σ = 3969472. Its totient is φ = 3892932.

The previous prime is 3931177. The next prime is 3931231. The reversal of 3931201 is 1021393.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1021393 = 269 ⋅3797.

It is a cyclic number.

It is not a de Polignac number, because 3931201 - 2¹³ = 3923009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3931231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18981 + ... + 19186.

It is an arithmetic number, because the mean of its divisors is an integer number (992368).

Almost surely, 2^3931201 is an apocalyptic number.

It is an amenable number.

3931201 is a deficient number, since it is larger than the sum of its proper divisors (38271).

3931201 is a wasteful number, since it uses less digits than its factorization.

3931201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38270.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 3931201 is about 1982.7256492011. The cubic root of 3931201 is about 157.8247402394.

Adding to 3931201 its reverse (1021393), we get a palindrome (4952594).

The spelling of 3931201 in words is "three million, nine hundred thirty-one thousand, two hundred one".