3742721029 has 2 divisors, whose sum is σ = 3742721030. Its totient is φ = 3742721028.

The previous prime is 3742721011. The next prime is 3742721053. The reversal of 3742721029 is 9201272473.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3684732804 + 57988225 = 60702^2 + 7615^2 .

It is an emirp because it is prime and its reverse (9201272473) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3742721029 - 2⁵ = 3742720997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3742722029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1871360514 + 1871360515.

It is an arithmetic number, because the mean of its divisors is an integer number (1871360515).

Almost surely, 2^3742721029 is an apocalyptic number.

It is an amenable number.

3742721029 is a deficient number, since it is larger than the sum of its proper divisors (1).

3742721029 is an equidigital number, since it uses as much as digits as its factorization.

3742721029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 3742721029 is about 61177.7821516929. The cubic root of 3742721029 is about 1552.6103816418.

The spelling of 3742721029 in words is "three billion, seven hundred forty-two million, seven hundred twenty-one thousand, twenty-nine".