3722005205 has 8 divisors (see below), whose sum is σ = 4484940504. Its totient is φ = 2965248000.

The previous prime is 3722005163. The next prime is 3722005207. The reversal of 3722005205 is 5025002273.

It can be written as a sum of positive squares in 4 ways, for example, as 310393924 + 3411611281 = 17618^2 + 58409^2 .

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

It is not a de Polignac number, because 3722005205 - 2⁶ = 3722005141 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 (3722005207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1543196 + ... + 1545605.

It is an arithmetic number, because the mean of its divisors is an integer number (560617563).

Almost surely, 2^3722005205 is an apocalyptic number.

It is an amenable number.

3722005205 is a deficient number, since it is larger than the sum of its proper divisors (762935299).

3722005205 is a wasteful number, since it uses less digits than its factorization.

3722005205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3089047.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 3722005205 is about 61008.2388288664. The cubic root of 3722005205 is about 1549.7405330510.

Adding to 3722005205 its reverse (5025002273), we get a palindrome (8747007478).

The spelling of 3722005205 in words is "three billion, seven hundred twenty-two million, five thousand, two hundred five".