3643237361 has 8 divisors (see below), whose sum is σ = 3659341224. Its totient is φ = 3627169920.

The previous prime is 3643237349. The next prime is 3643237379. The reversal of 3643237361 is 1637323463.

It can be written as a sum of positive squares in 4 ways, for example, as 165894400 + 3477342961 = 12880^2 + 58969^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3643237361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3643237561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202031 + ... + 219323.

It is an arithmetic number, because the mean of its divisors is an integer number (457417653).

Almost surely, 2^3643237361 is an apocalyptic number.

It is an amenable number.

3643237361 is a deficient number, since it is larger than the sum of its proper divisors (16103863).

3643237361 is a wasteful number, since it uses less digits than its factorization.

3643237361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18211.

The product of its digits is 163296, while the sum is 38.

The square root of 3643237361 is about 60359.2359212739. The cubic root of 3643237361 is about 1538.7302403820.

The spelling of 3643237361 in words is "three billion, six hundred forty-three million, two hundred thirty-seven thousand, three hundred sixty-one".