3723205 has 4 divisors (see below), whose sum is σ = 4467852. Its totient is φ = 2978560.

The previous prime is 3723149. The next prime is 3723211. The reversal of 3723205 is 5023273.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5023273 = 479 ⋅10487.

It can be written as a sum of positive squares in 2 ways, for example, as 2719201 + 1004004 = 1649^2 + 1002^2 .

It is not a de Polignac number, because 3723205 - 2¹⁵ = 3690437 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 372316 + ... + 372325.

It is an arithmetic number, because the mean of its divisors is an integer number (1116963).

Almost surely, 2^3723205 is an apocalyptic number.

It is an amenable number.

3723205 is a deficient number, since it is larger than the sum of its proper divisors (744647).

3723205 is an equidigital number, since it uses as much as digits as its factorization.

3723205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744646.

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 3723205 is about 1929.5608308628. The cubic root of 3723205 is about 154.9907035701.

Adding to 3723205 its reverse (5023273), we get a palindrome (8746478).

The spelling of 3723205 in words is "three million, seven hundred twenty-three thousand, two hundred five".