3243682645 has 12 divisors (see below), whose sum is σ = 4527916524. Its totient is φ = 2224239360.

The previous prime is 3243682639. The next prime is 3243682661. The reversal of 3243682645 is 5462863423.

It is a happy number.

3243682645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1300107249 + 1943575396 = 36057^2 + 44086^2 .

It is not a de Polignac number, because 3243682645 - 2⁷ = 3243682517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6619516 + ... + 6620005.

It is an arithmetic number, because the mean of its divisors is an integer number (377326377).

Almost surely, 2^3243682645 is an apocalyptic number.

3243682645 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3243682645 is a deficient number, since it is larger than the sum of its proper divisors (1284233879).

3243682645 is a wasteful number, since it uses less digits than its factorization.

3243682645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13239540 (or 13239533 counting only the distinct ones).

The product of its digits is 829440, while the sum is 43.

The square root of 3243682645 is about 56953.3374351319. The cubic root of 3243682645 is about 1480.2876609404.

The spelling of 3243682645 in words is "three billion, two hundred forty-three million, six hundred eighty-two thousand, six hundred forty-five".