3643630325 has 12 divisors (see below), whose sum is σ = 4673899140. Its totient is φ = 2814389760.

The previous prime is 3643630279. The next prime is 3643630339. The reversal of 3643630325 is 5230363463.

It can be written as a sum of positive squares in 6 ways, for example, as 16459249 + 3627171076 = 4057^2 + 60226^2 .

It is not a de Polignac number, because 3643630325 - 2¹⁶ = 3643564789 is a prime.

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, 2512124 + ... + 2513573.

It is an arithmetic number, because the mean of its divisors is an integer number (389491595).

Almost surely, 2^3643630325 is an apocalyptic number.

It is an amenable number.

3643630325 is a deficient number, since it is larger than the sum of its proper divisors (1030268815).

3643630325 is a wasteful number, since it uses less digits than its factorization.

3643630325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5025736 (or 5025731 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 35.

The square root of 3643630325 is about 60362.4910436937. The cubic root of 3643630325 is about 1538.7855614963.

Adding to 3643630325 its reverse (5230363463), we get a palindrome (8873993788).

The spelling of 3643630325 in words is "three billion, six hundred forty-three million, six hundred thirty thousand, three hundred twenty-five".