3902201 has 8 divisors (see below), whose sum is σ = 4178400. Its totient is φ = 3634164.

The previous prime is 3902167. The next prime is 3902209. The reversal of 3902201 is 1022093.

It is not a de Polignac number, because 3902201 - 2⁶ = 3902137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3902201.

It is not an unprimeable number, because it can be changed into a prime (3902209) 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, 66110 + ... + 66168.

It is an arithmetic number, because the mean of its divisors is an integer number (522300).

Almost surely, 2^3902201 is an apocalyptic number.

It is an amenable number.

3902201 is a deficient number, since it is larger than the sum of its proper divisors (276199).

3902201 is an frugal number, since it uses more digits than its factorization.

3902201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3902201 is about 1975.3989470484. The cubic root of 3902201 is about 157.4356972746.

Subtracting from 3902201 its product of nonzero digits (108), we obtain a palindrome (3902093).

Adding to 3902201 its reverse (1022093), we get a palindrome (4924294).

The spelling of 3902201 in words is "three million, nine hundred two thousand, two hundred one".