9540003689 has 2 divisors, whose sum is σ = 9540003690. Its totient is φ = 9540003688.

The previous prime is 9540003677. The next prime is 9540003719. The reversal of 9540003689 is 9863000459.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6890328064 + 2649675625 = 83008^2 + 51475^2 .

It is a cyclic number.

It is not a de Polignac number, because 9540003689 - 2⁴ = 9540003673 is a prime.

It is a super-2 number, since 2×9540003689² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9540003619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4770001844 + 4770001845.

It is an arithmetic number, because the mean of its divisors is an integer number (4770001845).

Almost surely, 2^9540003689 is an apocalyptic number.

It is an amenable number.

9540003689 is a deficient number, since it is larger than the sum of its proper divisors (1).

9540003689 is an equidigital number, since it uses as much as digits as its factorization.

9540003689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 9540003689 is about 97672.9424610521. The cubic root of 9540003689 is about 2120.8804110694.

The spelling of 9540003689 in words is "nine billion, five hundred forty million, three thousand, six hundred eighty-nine".