2057704739 has 2 divisors, whose sum is σ = 2057704740. Its totient is φ = 2057704738.

The previous prime is 2057704723. The next prime is 2057704741. The reversal of 2057704739 is 9374077502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2057704739 - 2⁴ = 2057704723 is a prime.

Together with 2057704741, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2057704739.

It is not a weakly prime, because it can be changed into another prime (2057704799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028852369 + 1028852370.

It is an arithmetic number, because the mean of its divisors is an integer number (1028852370).

Almost surely, 2^2057704739 is an apocalyptic number.

2057704739 is a deficient number, since it is larger than the sum of its proper divisors (1).

2057704739 is an equidigital number, since it uses as much as digits as its factorization.

2057704739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 370440, while the sum is 44.

The square root of 2057704739 is about 45361.9305034519. The cubic root of 2057704739 is about 1271.9235815920.

The spelling of 2057704739 in words is "two billion, fifty-seven million, seven hundred four thousand, seven hundred thirty-nine".