3739689409 has 3 divisors (see below), whose sum is σ = 3739750563. Its totient is φ = 3739628256.

The previous prime is 3739689407. The next prime is 3739689431. The reversal of 3739689409 is 9049869373.

The square root of 3739689409 is 61153.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 3704548225 + 35141184 = 60865^2 + 5928^2 .

It is not a de Polignac number, because 3739689409 - 2¹ = 3739689407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3739689407) 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 in 2 ways as a sum of consecutive naturals, for example, 30577 + ... + 91729.

It is an arithmetic number, because the mean of its divisors is an integer number (1246583521).

Almost surely, 2^3739689409 is an apocalyptic number.

3739689409 is the 61153-rd square number.

3739689409 is the 30577-th centered octagonal number.

It is an amenable number.

3739689409 is a deficient number, since it is larger than the sum of its proper divisors (61154).

3739689409 is an frugal number, since it uses more digits than its factorization.

3739689409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122306 (or 61153 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 58.

The cubic root of 3739689409 is about 1552.1910613935.

The spelling of 3739689409 in words is "three billion, seven hundred thirty-nine million, six hundred eighty-nine thousand, four hundred nine".