1023983617 has 2 divisors, whose sum is σ = 1023983618. Its totient is φ = 1023983616.

The previous prime is 1023983581. The next prime is 1023983659. The reversal of 1023983617 is 7163893201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 520250481 + 503733136 = 22809^2 + 22444^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023983617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1023983617.

It is not a weakly prime, because it can be changed into another prime (1023983677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511991808 + 511991809.

It is an arithmetic number, because the mean of its divisors is an integer number (511991809).

Almost surely, 2^1023983617 is an apocalyptic number.

It is an amenable number.

1023983617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023983617 is an equidigital number, since it uses as much as digits as its factorization.

1023983617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 1023983617 is about 31999.7440146011. The cubic root of 1023983617 is about 1007.9314645522.

The spelling of 1023983617 in words is "one billion, twenty-three million, nine hundred eighty-three thousand, six hundred seventeen".