3613430643 has 4 divisors (see below), whose sum is σ = 4817907528. Its totient is φ = 2408953760.

The previous prime is 3613430629. The next prime is 3613430651. The reversal of 3613430643 is 3460343163.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3613430643 - 2⁴ = 3613430627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3613430683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602238438 + ... + 602238443.

It is an arithmetic number, because the mean of its divisors is an integer number (1204476882).

Almost surely, 2^3613430643 is an apocalyptic number.

3613430643 is a deficient number, since it is larger than the sum of its proper divisors (1204476885).

3613430643 is a wasteful number, since it uses less digits than its factorization.

3613430643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204476884.

The product of its (nonzero) digits is 46656, while the sum is 33.

The square root of 3613430643 is about 60111.8178314381. The cubic root of 3613430643 is about 1534.5224307010.

The spelling of 3613430643 in words is "three billion, six hundred thirteen million, four hundred thirty thousand, six hundred forty-three".