3709688449 has 2 divisors, whose sum is σ = 3709688450. Its totient is φ = 3709688448.

The previous prime is 3709688441. The next prime is 3709688471. The reversal of 3709688449 is 9448869073.

3709688449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3616218225 + 93470224 = 60135^2 + 9668^2 .

It is a cyclic number.

It is not a de Polignac number, because 3709688449 - 2³ = 3709688441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3709688393 and 3709688402.

It is not a weakly prime, because it can be changed into another prime (3709688441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1854844224 + 1854844225.

It is an arithmetic number, because the mean of its divisors is an integer number (1854844225).

Almost surely, 2^3709688449 is an apocalyptic number.

It is an amenable number.

3709688449 is a deficient number, since it is larger than the sum of its proper divisors (1).

3709688449 is an equidigital number, since it uses as much as digits as its factorization.

3709688449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10450944, while the sum is 58.

The square root of 3709688449 is about 60907.2117979472. The cubic root of 3709688449 is about 1548.0291912104.

The spelling of 3709688449 in words is "three billion, seven hundred nine million, six hundred eighty-eight thousand, four hundred forty-nine".