1700013649 has 2 divisors, whose sum is σ = 1700013650. Its totient is φ = 1700013648.

The previous prime is 1700013647. The next prime is 1700013739. The reversal of 1700013649 is 9463100071.

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., 1265082624 + 434931025 = 35568^2 + 20855^2 .

It is a cyclic number.

It is not a de Polignac number, because 1700013649 - 2¹ = 1700013647 is a prime.

Together with 1700013647, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1700013649.

It is not a weakly prime, because it can be changed into another prime (1700013647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 850006824 + 850006825.

It is an arithmetic number, because the mean of its divisors is an integer number (850006825).

Almost surely, 2^1700013649 is an apocalyptic number.

It is an amenable number.

1700013649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1700013649 is an equidigital number, since it uses as much as digits as its factorization.

1700013649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1700013649 is about 41231.2217742817. The cubic root of 1700013649 is about 1193.4863860074.

The spelling of 1700013649 in words is "one billion, seven hundred million, thirteen thousand, six hundred forty-nine".