3975737729 has 2 divisors, whose sum is σ = 3975737730. Its totient is φ = 3975737728.

The previous prime is 3975737713. The next prime is 3975737737. The reversal of 3975737729 is 9277375793.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3913753600 + 61984129 = 62560^2 + 7873^2 .

It is a cyclic number.

It is not a de Polignac number, because 3975737729 - 2⁴ = 3975737713 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3975737429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1987868864 + 1987868865.

It is an arithmetic number, because the mean of its divisors is an integer number (1987868865).

Almost surely, 2^3975737729 is an apocalyptic number.

It is an amenable number.

3975737729 is a deficient number, since it is larger than the sum of its proper divisors (1).

3975737729 is an equidigital number, since it uses as much as digits as its factorization.

3975737729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17503290, while the sum is 59.

The square root of 3975737729 is about 63053.4513646953. The cubic root of 3975737729 is about 1584.1850446646.

The spelling of 3975737729 in words is "three billion, nine hundred seventy-five million, seven hundred thirty-seven thousand, seven hundred twenty-nine".