1002485689 has 2 divisors, whose sum is σ = 1002485690. Its totient is φ = 1002485688.

The previous prime is 1002485683. The next prime is 1002485723. The reversal of 1002485689 is 9865842001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 533979664 + 468506025 = 23108^2 + 21645^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002485689 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002485683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501242844 + 501242845.

It is an arithmetic number, because the mean of its divisors is an integer number (501242845).

Almost surely, 2^1002485689 is an apocalyptic number.

It is an amenable number.

1002485689 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002485689 is an equidigital number, since it uses as much as digits as its factorization.

1002485689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 1002485689 is about 31662.0544027074. The cubic root of 1002485689 is about 1000.8278774298.

The spelling of 1002485689 in words is "one billion, two million, four hundred eighty-five thousand, six hundred eighty-nine".