3688938089 has 4 divisors (see below), whose sum is σ = 3689067600. Its totient is φ = 3688808580.

The previous prime is 3688938083. The next prime is 3688938131. The reversal of 3688938089 is 9808398863.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9808398863 = 17 ⋅576964639.

It is a cyclic number.

It is not a de Polignac number, because 3688938089 - 2²⁸ = 3420502633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3688938083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1307 + ... + 85904.

It is an arithmetic number, because the mean of its divisors is an integer number (922266900).

Almost surely, 2^3688938089 is an apocalyptic number.

It is an amenable number.

3688938089 is a deficient number, since it is larger than the sum of its proper divisors (129511).

3688938089 is an equidigital number, since it uses as much as digits as its factorization.

3688938089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129510.

The product of its (nonzero) digits is 17915904, while the sum is 62.

The square root of 3688938089 is about 60736.6288906456. The cubic root of 3688938089 is about 1545.1374621010.

The spelling of 3688938089 in words is "three billion, six hundred eighty-eight million, nine hundred thirty-eight thousand, eighty-nine".