1739313649 has 4 divisors (see below), whose sum is σ = 1786322164. Its totient is φ = 1692305136.

The previous prime is 1739313623. The next prime is 1739313661. The reversal of 1739313649 is 9463139371.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 821223649 + 918090000 = 28657^2 + 30300^2 .

It is a cyclic number.

It is not a de Polignac number, because 1739313649 - 2⁵ = 1739313617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1739313599 and 1739313608.

It is not an unprimeable number, because it can be changed into a prime (1739313619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23504202 + ... + 23504275.

It is an arithmetic number, because the mean of its divisors is an integer number (446580541).

Almost surely, 2^1739313649 is an apocalyptic number.

It is an amenable number.

1739313649 is a deficient number, since it is larger than the sum of its proper divisors (47008515).

1739313649 is an equidigital number, since it uses as much as digits as its factorization.

1739313649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47008514.

The product of its digits is 367416, while the sum is 46.

The square root of 1739313649 is about 41705.0794148626. The cubic root of 1739313649 is about 1202.6132053986.

The spelling of 1739313649 in words is "one billion, seven hundred thirty-nine million, three hundred thirteen thousand, six hundred forty-nine".