2739739657 has 2 divisors, whose sum is σ = 2739739658. Its totient is φ = 2739739656.

The previous prime is 2739739619. The next prime is 2739739663. The reversal of 2739739657 is 7569379372.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2091324361 + 648415296 = 45731^2 + 25464^2 .

It is a cyclic number.

It is not a de Polignac number, because 2739739657 - 2¹⁵ = 2739706889 is a prime.

It is not a weakly prime, because it can be changed into another prime (2739739687) 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, 1369869828 + 1369869829.

It is an arithmetic number, because the mean of its divisors is an integer number (1369869829).

Almost surely, 2^2739739657 is an apocalyptic number.

It is an amenable number.

2739739657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2739739657 is an equidigital number, since it uses as much as digits as its factorization.

2739739657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15002820, while the sum is 58.

The square root of 2739739657 is about 52342.5224554568. The cubic root of 2739739657 is about 1399.2750765684.

The spelling of 2739739657 in words is "two billion, seven hundred thirty-nine million, seven hundred thirty-nine thousand, six hundred fifty-seven".